The view that the value of an action derives solely from the value of its consequences.con'se·quenʹtial·ist n.
* * *In ethics, the doctrine that actions should be judged right or wrong on the basis of their consequences.The simplest form of consequentialism is classical (or hedonistic) utilitarianism, which asserts that an action is right or wrong according to whether it maximizes the net balance of pleasure over pain in the universe. The consequentialism of G.E. Moore, known as "ideal utilitarianism," recognizes beauty and friendship, as well as pleasure, as intrinsic goods that one's actions should aim to maximize. According to the "preference utilitarianism" of R.M. Hare (1919–2002), actions are right if they maximize the satisfaction of preferences or desires, no matter what the preferences may be for. Consequentialists also differ over whether each individual action should be judged on the basis of its consequences or whether instead general rules of conduct should be judged in this way and individual actions judged only by whether they accord with a general rule. The former group are known as "act-utilitarians" and the latter as "rule-utilitarians." See also deontological ethics.
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