Too much money can drive people mad. They start out quite sane, but the tremendous scope for self-indulgence and utter folly that the money offers them soon turns them into madmen, addicts or wastrels. Observe what has happened to many famous actors and rock stars, for example. Consider the case of Howard Hughes! He probably would have been perfectly all right if he'd grown up in an ordinary household with just enough money to get by, and a hardworking mother who didn't have all that extra time and energy to obsess about the big bad germs menacing her little boy.