It doesn't work that way when one of them owns the company. If Musk were CEO then maybe they would have a point. But Musk isn't CEO. In fact I don't think he's an employee of SpaceX at all. He is the majority owner of the company. The most important of the investors. And legally speaking the company has a duty to him, not the other way around. CEO's can and do get fired for making companies look bad. Happens all the time. You can't fire an owner.

Now we can discuss how we think it ought to work all day long. But that is how it does work today. It's not an even relationship and never has been. The guy signing the checks gets to decide if he wants to employee you. If people decide that he's a dick and don't want to work for him then he will find it hard to hire good talent.