Hillary may be a millionaire, but I don't think she's ever been a CEO. She's earned her money by other means. Most lately, she's earned her money through books and speaking engagements.
I read on Forbes recently that CEOs now earn 331 times more than the average worker, and over 700 times the average minimum wage worker. While I agree that being a CEO deserves higher compensation than a worker, I don't see a good reason for the person at the top to be so lavishly paid when the people at the bottom can't make ends meet.