Michael Kinsley has a good...

...take on Edward Conard (above), the subject of that Times article, "The Purpose of Spectacular Wealth, According to a Spectacularly Wealthy Guy": 

Conard clearly believes that he is in the Alpha elite that should get more money, not less. He was a partner of Mitt Romney at Bain Capital until he retired a few years ago at age 51. This makes him a counterexample to his own theory. His rapid accumulation of huge wealth (estimated in the story to be "most likely in the hundreds of millions") did not cause him to buckle down and work even harder. It caused him to retire and follow pursuits more satisfying to him than making more money.