A bit? That’s quite the understatement. He’s full on loony tunes.
Also, good at technical stuff compared to the average person is a pretty low bar. He might clear it, but there’s no real evidence that he has any particular skills in technology, programming, or engineering, and in fact, clear evidence to the contrary.
I don’t think Musk is anywhere close to a Hitler or Stalin, but I also don’t think he is worthy of being the richest person in the world because I don’t think he’s really earned it. He simply isn’t the sort of person I would look at and say “Yes, based on your exceptional talents, you deserve to be the richest person in the world.” Of course, I also don’t think anyone should be as wealthy as Musk. It is a poor use of the world’s wealth to have it increasingly concentrated in fewer people but that’s a whole other story.
And in case, you’re wondering, people that I think perhaps deserve the title:
Gates (legitimately built Microsoft, did lots of scummy antitrust stuff, but he’s doing good works now)
Jobs (legitimately built Apple not just once but TWICE, the company is kind of evil though)
Bezos (legitimately build Amazon, he treats his employees VERY badly though)
Buffett (consistently making money in the markets is a legitimate eye for quality)
There’s probably others but they come to mind. Of course, the people on that list had all sorts of help from all sorts of people, organizations, government, but their skill is undeniable. You can see a consistent pattern of action that created success. Musk doesn’t have that. He kept getting removed from companies, that succeeded despite him, and then had two of his latest companies saved from bankruptcy, has other ventures that are just dumb (e.g., Boring Company), and his actions with Twitter really show just how incompetent really is, and how the defects in his personality affect his ability to conduct business.
In a fair and just world, Musk would not be the richest person. The fact that he is tells us that our economic system is deeply flawed.