Alex Soros, $20 billion
Son of George Soros, a billionaire businessman and philanthropist, Alex Soros is an established author. He attended NYU and Berkeley, the latter of which gave him a Ph.D. in history. He has published in Politico, The Guardian, The Forward, and many more.
Cindy McCain, $200 million
Cindy McCain is the widow of former US State Senator John McCain and heiress to the massive Hensley & Co. She attended the University of Southern California. While Hensley & Co. is a beer distributor, she didn't work there until her father's death, serving on boards for foreign aid.
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