I've always thought the essential internal dichotomy was between maximizing mate selection and maximizing offspring survival.
the urge to maximize mate selection carries with it many anti-social behaviors, while the urge to maximize offspring survival requires cooperation with the group. the history of governance has been the history of conflict over how far to the "left" or "right" the social contract should fall. To the left lies collectivism (offspring survival), to the right lies individualism (mate selection).