In The New York Times, Class Matters, what attributes define the hyper-rich (nouveau-riche)?

The hyper-rich (nouveau-riche) include those individuals who make a killing on Wall Street or whose innovative concepts result in wealth beyond anyone’s imagination. The new rich are outdistancing the old rich. If they aren’t accepted into an private country club on the island, they build their own and make it more exclusive and opulent than the one that refused them. Old money is proud of their 45-foot yachts even though 200-foot yachts of the new money sail past them.