utilitarianism
Concise Oxford English Dictionary © 2008 Oxford University Press:
utilitarianism/juːtɪlɪˈteəriənɪzəm/
▶noun the doctrine that actions are right if they are useful or for the benefit of a majority.
■ the doctrine that the greatest happiness of the greatest number should be the guiding principle of conduct.
'utilitarianism' also found in these Oxford entries:
