Well, you can look at the calibre of the execs. Musk knows enough about his passion to actually embed into the teams and help innovate. Bezos just bought a ticket to space for a billion bucks, so that he could be cool like the other billionaires.
I don't know Bezos or Musk, and I'm not a CEO cult of personality member, but Bezos seems to want to be the smartest guy in the room, and if he isn't he'll elbow the other people out of the way.
Musk does seem to want to be the smartest person in the room, and he obviously likes his public person, but if he isn't the smartest doesn't seem to mind. Battery day was basically him saying high level remarks, and delegating PUBLICLY to the other extremely smart people.
