I think you are confusing "majored in" with "has a degree in"
CEO of google: MBA from UPENN
CEO of SnapChat: No college degree
CEO of FaceBook: Dropped out, studied psychology and CS
CEO of Telsa: Uugrad in physics and economics from Wharton (business school)
Started PhD, dropped out.
I could go on.
That being said, I'm engineer/math and fuck business people. But CS are fucking dicks and should be dragged out back and shot.