Big Hollywood stars need a liaison for the real world. This is the conclusion I came to when watching America's Sweethearts. Some people rise so far above the day-to-day world (where the rest of us live) that they need someone else to translate between the their world and the ground-level reality. I suppose the same thing happens to a lesser extent with the heads of companies. It's a weird feeling. It's like they're aliens now, and the world of closed shops, bills and traffic is foreign territory. Instead they've got personal service with a smile wherever they go, helicopters and a fairy godmother that grants wishes. They speak a different language.
Mokalus of Borg
PS - Such a life is clearly troubled, though.
PPS - It's just troubled in different and alien ways to the real world.