The creator of eBay, Pierre Omidyar, has earned $8.1 billion and according to the businessman, it’s more than his family will ever need. Also, Omidyar thinks that money shouldn’t simply be kept in hands — it should work. In his case, the money works for the benefit of society. Omidyar signed ’The Giving Pledge’ and is planning to give all his money away to the charity foundation.