The general principle is that the victors don't look at themselves or concede anything. The defeated typically have to, except when it's beneficial to the powerful for them not to.
Noam ChomskyAt the beginning of his administration, Reagan tried set the basis for American military intervention in El Salvador - which is about what Kennedy did when he came into office in regard to Vietnam. Well, when Kennedy tried it in Vietnam, it just worked like a dream. Virtually nobody opposed American bombing of South Vietnam in 1962. It was not an issue. But when Reagan began to talk of involving American forces in El Salvador there was a huge popular uproar. And he had to choose a much more indirect way of supporting the collection of gangsters in power there. He had to back off.
Noam ChomskyThe 'free-floating intellectual' may occupy himself with problems because of their inherent interest and importance, perhaps to little effect.
Noam Chomsky