How much land does a man need?

I was thinking about the arrest of hedge fund owner Raj Rajaratnam for insider trading. Here is a man whose worth is estimated be around 1.5 billion dollars. He is accused of violating the basic trading laws to make a 'paltry' 20 million dollars. What makes a person do something stupid like that when he has all that money? How much land does a man need?

An amusing side story is that Mr. Rajaratnam once paid 4 million dollars to singer Kenny Rogers to come and sing at party in his house. He reportedly made the singer sing his trademark ‘Gambler’ song 12 times, before Rogers refused to do it anymore. Here is a question someone posted in Internet :

Question: Exactly WHEN did Kenny Rogers start to feel like a whore?
Was it during the middle of the 5th performance of the song?
Or during the chorus of the 7th performance, when he realized he was in someone's kitchen?
Or was it during the 11th performance?

Why does a multimillionaire like Kenny Rogers go and take this type of humiliation? Again, how much land does a man need?