Earlier quoted context omitted.
With all due respect to Sam I have no idea what qualifies Sam to even be opining on this subject without a bit more of a circumspect attitude. If he was a professor of business or had a long standing knowledge of business that would be one thing. The word "most" would certainly be better but even that goes a bit to far with a subject as large as "business" and "companies".
To be blunt, people who've done consistently well in the startup world run circles around "professors of business".
Do the Peter Druckers and Clayton M Christensens of the world really not know more than the Steve Jobs and Bill Campbell types? I choose those names rather than Bill Gates or Larry Page because those guys have done multiple companies, which seems to be an important criteria for doing "consistently well". I find it difficult to believe that such prolific thinkers as Drucker or Christensen would get circles run around themselves.
For the bottom of both populations, I'd even venture to guess that the professors of business are more knowledgeable than the startup founders. Come on, you've met some pretty bad startup founders, and you know it. Although I suppose it also depends on how one defines the criteria because it's always easy to cull the population to suit one's conclusions.