Hard disagree. Plenty of antisocial (or worse) behaviour has been promulgated by those indisputably at the top of the social food chain -- almost every war of conquest, for example. Did the British Empire expand throughout the world because the British felt marginalised? No, the rest of the world considered them to be a great power and many other cultures voluntarily adopted their styles of dress and other customs as a mark of "modernity".
A sense of marginalisation (real or imagined) can certainly be a force that acts to reduce empathy and encourage violence, but it's by no means necessary.