The other Iron Man is perhaps the best example of excessively good living. Larry Ellison, co-founder and CEO of Oracle, is known for spending as much time with his Yachts as he does in the office. Ellison, 66, is owner of the American Cup-winning BMW Oracle racing team, and at one time counted the sixth largest yacht in the world among his fleet. But it's not just sea-faring vehicles that catch his eye, the Oracle boss rolls around town in some of the flashiest rides on four wheels, including the McLaren F1, Audi R8 and Lexus LFA. And when supercars just aren't fast enough, Ellison simply boards one of his many private jets. He is a licensed pilot.

The veteran tycoon is the fifth richest man in the world, with a net worth of nearly $40 billion. He rests his bones at a number of high priced homes, including a California mansion with a 2.3 acre man-made lake valued at an estimated $70 million. All that from selling the world's most boring business software.