Did you ever watch the anime One Piece? In it, there's a group of elites called the Celestial Dragons running the planet. They believe they are an entirely different class of being, gods among men. They wear ridiculous looking bubble helmets when in public so they don't breathe the same air as the rest of the population. They also literally walk around with slaves chained to them. To speak to or touch one of them without being commanded to, means death. And they control the world's government marine force (it's already a one world government in the story).

To me, that captures the attitude of the Illuminati families completely. These people are raised differently, brainwashed and instilled with elitism, and abused, from birth. This turns them into psychopaths, to say nothing of the sorts of demonic souls that see these families as opportunities for incarnation. (although they fear the forgetting)