#3 EBay founder Pierre Omidyar

Pierre Omidyar’s net worth is $8.7 B as of March 2013. The eBay founder has made it his life's work to donate the majority of his money to those less fortunate instead of to his three children, according to Forbes. He signed the Gates and Buffett Giving Pledge in 2010, and continuously gives eBay shares to the Omidyar Network, his philanthropic investment firm. He and his wife Pam are also the single biggest private donors to the fight against the human trafficking industry.

#4 Actor Jackie Chan

The Shanghai Noon actor has over $130 Million. The movie star announced in 2011 that he had decided to give away half his money to charity when he dies. Chan added that he was not planning on leaving his son Jaycee any of the millions of dollars he has made during his film career. "If he is capable, he can make his own money. If he is not, then he will just be wasting my money," Channel NewsAsia quoted Chan as saying.

Read Also: Top 10 Banned Apps On BYOD Devices and 10 Worst Things About Working At Facebook