But that's not what people mean when they say they could run a Fortune 500 company if given the chance. All of the things you list are things that are easily learned, the bigger question is whether in addition to that knowledge the CEOs of big companies have any particular character traits, unique skills or business insights or not.
I have a feeling that if I took all the time and energy I've put into studying and working with computers my entire life and chose to put all that time and energy into studying and working with business concepts instead, I'd be able to run a business, possibly even a Fortune 500 one.
Alas I didn't spend all that time and energy on business, so I can't run a Fortune 500 company, but alternate universe me might.