It's the same thing with the rich and powerful. Most rich and powerful people believe they got to that position because of their inherent worth, either their genius or their accomplishments or as being good stewards of their birthright if they were born wealthy.

These people have a reason to not hear what other people say when people tell them that what they are doing is amoral at best and immoral at worst. They take it as a personal attack on their self-esteem and their self worth rather than as an attempt to begin fixing the larger societal problems that their current position is capable of fixing.

Elon musk doesn't have to be a nut job. He doesn't have to destroy the conversational communal meeting place of a billion people to be someone of note. He's doing it because he thinks he can do it better and that all of us idiot plebeians will just follow along once he sets the path.

The fact that this will have in the process destroyed the ability for people across the planet to coordinate against despotic government systems in the process is not important because that would mean that Elon did a bad thing, and that would make Elon feel bad so it's just not even going to be considered.