I'm almost sure he'd be laughed out of many meetings today, if his name would be different - i.e. nobody would think he's behind SpaceX vision. Not all meetings, but many. Imagining an aerospace professional - somebody in a position of Tony Bruno talking with a guy John Smith, when that John Smith describes similar vision and approaches to SpaceX, I can too easily imagine that aerospace professional dismissing him too easily.
That's not about Musk. That's about modern aerospace.
> i have never seen any indication that he understands as much as people freely give him credit for.
Hm. I didn't catch Musk on too blatant physical errors (I might be not a perfect examiner though :) ), but the thing is, "the rocket science is not a rocket science". Building rockets these days is many, many times easier that half a century ago. You don't need Einstein's level of sharpness to get pretty good results.
> bezos has a degree in electrical engineering and computer science from princeton. not sure what you consider technical.
Well, title of CEO in Amazon may have a large negative effect on technical abilities of a person. I've seen people with cum laude science Ph.D's from top world technical universities which are much happier with management and don't demonstrate technical abilities too much. So, "Bezos ...is not technical" may be unrelated to his degrees.