All three of those guys were/are clueless about business until Jobs made their ideas work.
He could sell, but as a side effect.
I see this too often from fellow developers - anyone pushing business objectives and strategy instead of engineering choices is a "salesman". It's not true at all.
Calling Jobs a salesman is like calling Einstein a Civil Rights campaigner. Certainly they both did that, and did it well, but it sort of misses the major thing they were good at.