Although I think people superestimate the wealth of some leaders (like Putin and Khadaffi when he was alive), there is some people much wealthier than Bill Gate

Although I think people superestimate the wealth of some leaders (like Putin and Khadaffi when he was alive), there is some people much wealthier than Bill Gates. I met once a guy that worked for some banks that handled middle-east money, and he said it was not uncommon to see some accounts moving around numbers with a crazy amount of zeroes, although he didn't knew what was personal money, what was family money, and what was company money, the amount of money flow still was much, much more than what western people move... but middle easterns don't care about disclosing it.