Bill Gates did not have a GED.... he graduated from HS. Sure, he was a college drop out... from Harvard... only after consciously making a decision to start a business. Not quite the same story as the guy who worked in a coal mine for 6 months and didn't like community college.
Yes... there are billionaires that have run successful companies that have only had a GED. I am not sure it is quite equitable to put Bill Gates and Cory Gregory on the same page.