Musk is many things.
* As an investor I would not invest money in Musk's business. It's too risky and ego driven. He finances his endeavors just as creatively as he does technology and takes lots of risk. He is clearly not after money. Money is just tool for him. It's either Mars or bust. Inspiring but not good thing from investor point of view.
* From a technological point of view I admire what Musk has accomplished. His single mindedness has moved space technology forward. He should be admired for what he has done. He has deserved his hype. He has knack of getting things done while stretching everything very close to failure. Even if his businesses fails and he loses everything, that technology is there and others buy it.
* From a humanistic point of view, I understand that Musk will throw people under the bus if they are in the way of his goals. I would not want to be dependent on him any way.
Musk is very typical driven tech industry titan. You have to prioritize. If personal ambition is high, all other issues must come second. Musk, Jeff Bezos, Steve Jobs, Bill Gates all have documented mean streaks towards other people and workers. We should understand that highest level of accomplished very often comes with high human cost. There is a choice.
This is where government regulations should come in.
Musk is not treating people badly because he is malevolent. It's just means to the end. If mistreatment of workers can't be used to gain competitive edge, it stops.