Rankings of some of the most influential men in the history of humanity, as ranked by wealth in 2001 US Dollars (some figures are approximate as they take into consideration inflation, GDP growth, currency exchange rates, and fluctuations in share prices). 10. Sheikh Zayed Bin Sultan Al Nahyan -- $ 23 billion The United Arab Emirates Sheikh has considerable holdings in oil, property and various investments,. 9. Paul Allen -- $25 billion Microsoft co-founder and Vulcan Ventures founder ...