Weighing the Results
Consequentialism holds that an action is right in proportion to how much good it produces overall — counting everyone's welfare equally — so rightness is judged by results, not by the motive or the rule behind the act. · 12 min
Some choices are easy to judge by their results. A cure that saves thousands is good; a policy that starves them is not — the outcomes speak for themselves. Consequentialism takes that ordinary thought and makes it the whole of ethics: the right action is simply the one that brings about the most good, all things considered. Nothing else counts on its own — not the motive in your heart, not the rule you were taught, not who happens to benefit. Only what actually happens, weighed across everyone it touches. It is a clean and demanding idea, and pressing on it is the work of this folio.
Guess before you learn
Two people each donate 100 dollars to the same food bank on the same day. One gives out of genuine concern for hungry strangers; the other gives only to look generous in front of a friend. The money helps exactly the same people either way. On a strict consequentialist view, is one donation morally better than the other?
By the strict consequentialist standard the two acts are equally right, because rightness lives entirely in the outcome — and the outcome is the same fed families. Many people balk here: surely the kinder motive counts for something. It may count in judging the person, the consequentialist can say, but not in judging the act. Whether that separation can hold is one of the deepest questions this theory faces.
9–12
3–5
Imagine two plans for the class party. One makes a few friends very happy but leaves most people bored. The other makes almost everyone a little happy. Which is the better plan? If you judge by how much happiness fills the whole room, the second plan wins.
That is the heart of one great idea in ethics: the best action is the one that produces the most good, added up over everyone it affects. Not the most good for you — the most good, full stop.
6–8
Consequentialism is the view that the rightness of an action depends only on its consequences. Its most famous form, utilitarianism, sets the goal precisely: the right action is the one that produces the greatest total happiness, counting each person's happiness equally.
Three commitments follow. Results, not motives or rules, decide rightness. Everyone affected counts, and counts once — the stranger's welfare weighs as much as your own. And the good is added up, so a large benefit to many can outweigh a small harm to a few. Each commitment is a strength in some cases and a target in others.
9–12
Jeremy Bentham gave the theory its slogan — the greatest happiness of the greatest number — and imagined a felicific calculus that scores each option by the pleasure and pain it produces. John Stuart Mill refined it, insisting that pleasures differ in quality as well as quantity: the satisfactions of thought and friendship rank above mere sensation, so that it is 'better to be Socrates dissatisfied than a fool satisfied.'
This version is act utilitarianism: for any decision, survey the options, estimate the happiness each would produce for everyone affected, and choose the greatest sum. Its appeal is impartial and clear. Its cost appears when the sum recommends something monstrous — framing an innocent to calm a mob — and we suspect that more than arithmetic must be at stake.
K–2
Before you choose, think about what will happen. If sharing your snack makes two friends happy and hurts no one, that is a good choice. Ask what your choice will do.
The best choice is often the one that helps the most people and hurts the fewest. Count everyone, not just yourself, when you add up the good.
Undergrad
The innocent-scapegoat and forced-transplant cases pushed many toward rule utilitarianism: judge not the individual act but the rule it follows, and choose the rule whose general adoption would maximize welfare. A rule against framing the innocent produces more good overall than a policy of case-by-case framing, so rule utilitarianism forbids the scapegoat that act utilitarianism seemed to license.
Two objections cut deeper than any single case. Rawls charged that aggregation ignores the separateness of persons — summing across people treats a loss to one as fully repaid by a gain to another, as if humanity were a single vessel of welfare. And Williams pressed the integrity objection: a morality that always requires the impartially best outcome can demand that you abandon the very projects and loyalties that make you a self.
Postgrad
Refinements multiply. Actual- versus expected-value consequentialism divides over whether rightness tracks results or reasonable foresight; scalar utilitarianism abandons a sharp right/wrong line for degrees of betterness; Hare's two-level theory assigns intuitive rules to daily life and critical calculation to reflection, hoping to bank the practical gains of rules without the theoretical retreat. Each repair trades a counterexample for a complication.
Population ethics exposes the rawest nerve. Parfit's repugnant conclusion shows that maximizing total welfare favors an enormous population whose lives are barely worth living over a small, flourishing one — and no axiology yet avoids every such result without incurring another. The lasting appeal survives the puzzles: consequentialism alone makes the size of a benefit matter, and any rival must explain why, sometimes, it does not.
utility
In ethics, the good an action produces — happiness, well-being, or satisfied preference, depending on the version. To maximize utility is to bring about the greatest total of that good, counting everyone equally.
The theory's promise is that hard choices become, in principle, a calculation. You will rarely have exact numbers, but working one example by the numbers shows what the principle is really asking. Give each person's gain or loss a rough score, add across everyone, and compare the totals. The striking feature is that the winner can flip when the numbers change, even though the number of people stays fixed. That is not a flaw in the arithmetic — it is the whole claim: what matters is the size of the good, not the size of the crowd.
Compare two uses of a town budget — the steps fade as you master them
2 × 100 = 200
30 × 5 = 150
A — 200 is greater than 150.
50 × 5 = 250
B — 250 beats 200. Same people, a different sum, the opposite verdict.
Why is this true?
Why can a consequentialist say the two donations are equally right, yet still praise the kinder giver?
Because the theory judges acts by their consequences and persons by their characters, and keeps the two verdicts apart. The acts share an outcome, so they are equally right; the givers differ in what their choices reveal about them, so one may still be the more admirable person.
Consequentialism captures something no honest ethics can ignore: results matter, and a view that never looked at them would be monstrous in its own way. What it struggles to hold is everything that seems to matter besides results — promises, rights, the difference between doing harm and merely allowing it. The next folio takes up a theory built precisely on what consequentialism leaves out, and asks whether the right thing to do could ever depend on a rule you would want everyone to follow, whatever the results.
Practice — new ink and old, interleaved
1.From memory: name the three core commitments of utilitarianism.
Results decide rightness, not motives or rules; everyone affected counts equally and counts once, which is impartiality; and the good is added up, so that benefits to many can outweigh harms to a few, which is aggregation.
How close were you? Grade yourself honestly — it sets your review date.
2.Four reasons are offered against a factory closing a polluting plant. Which one is the consequentialist reason?
3.Without looking back: what is the difference between a valid argument and a sound one?
A valid argument has a form that guarantees the conclusion if the premises are true. A sound argument is valid and also has premises that are in fact true, so its conclusion must be true.
How close were you? Grade yourself honestly — it sets your review date.
4.From folio 9: some consequentialists decide whether to blame someone by asking whether blaming will do good. Which view of freedom does that most resemble?
5.In “We should cancel the trip, since the forecast is for storms all week,” which part is the conclusion?
6.“All metals conduct electricity. Rubber is a metal. So rubber conducts electricity.” The best diagnosis is:
7.In one sentence, distinguish act utilitarianism from rule utilitarianism.
8.From folio 2: in the argument 'We should fund the clinic, because it will relieve the most suffering for the money,' what is the conclusion?
9.From folio 3: a utilitarian argues, 'The right act maximizes happiness; this act maximizes happiness; so this act is right.' The form is valid. When would it fail to be sound?
10.Name the hidden premise in “Dana is a doctor, so Dana studied for years.”
11.Give the two-step order for checking an argument, and say why the order matters.
12.Plan X gives +3 happiness to each of 40 people; Plan Y gives +5 to each of 30 people. What is Plan Y's total?