Well maybe objections to USA intervention with dictators and people commiting
atrocities raise partially from USA refusal to allow it's citizens to be put
to same footing with other people, ie to be judged in international court for
crimes against humanity.
I can understand if USA have good relations with some dictator led countries,
maybe they have some abilyty to influence them from inside. So far it has been
slow process, and it's unknown to me wether or not USA has any intention to
attempt correct wrongs within those countries.