Yeah, Tesla is real productive. Only Elon Musk would have the brilliant idea of building a $100% automated factory, failing to do that, setting the goal of building 5,000 cars a week on normal lines, failing to do that, moving his employees into a circus tent in the hot sun to hit the goal, failing again, then giving up and declaring victory.
Tesla can't build cars because Elon Musk, being a big dumb-dumb, disregarded everything we know about manufacturing. Those employees would be more useful at any other car manufacturer. And yes, that includes Chevy.
I actually think Elon Musk probably is better than most other billionaires. That says more about them than it does about him.
There are affluent people who have money and park it or spend it away.
Also just having great volumes of potential workers and no one to organize them into a productive body does little good.