Thats why its called price discrimination: you are trying to get as much money as possible from each buyer without regard to fairness. Heroin dealers at least set a fixed $/oz because they know that word getting around that someone gets it cheaper would get them shot.
conflates a couple of things: the legacy tip itself and the fact that legacies tend to have stronger academic profiles to begin with (they come from advantaged households). A skeptic can fairly say "of course legacy admits do well, they're better applicants"