9. Charles Koch – $ 39.6 billion
To answer the question: Mansa Musa vs. Genghis Khan: who is the richest man in history?; was quite easy. Now the CEO and Chairman of Koch Industries, Charles has long been managing their business of oil and gas, manufacturing, chemicals, and pipelines. As mentioned the Koch brothers have been Republican donors and influencers for many years, but have instead focused on the House and Senate race during last year’s elections.
8. Michael Bloomberg – $40 billion
One of the most well-known self-made billionaires in the modern era, Michael Bloomberg started out at Wall Street in an entry level job at Salomon Brothers. Fast forward to today, he still has a major chunk of the firm he started. Bloomberg is still one of the most trusted American brands. Like the Koch brothers, he is also a mega-political donor, switching from Democrat to Republican to Independent and running New York City as the mayor for 11 years.
