You can think what you want. But if you're perceptive and think really hard about the individuals at the front of companies, and you've spent time thinking about Elon Musk, it's really clear that he will never stop until someone assassinates him.

The guy had a dad who psychologically tortured him, he got thrown down stairs by gangs of blacks in apartheid South Africa, and he completely detached himself from any social connections when he was 17 by moving to Canada. The guy's only reason to live is to fulfill his dreams that he gained from reading every single science fiction book that existed.

Anyway you can think what you want but I know that he's not like the other CEOs that are career CEOs. He's on a mission fueled by intense hardship and retribution

Nobody lives forever. Assassination isn't the only possibility for untimely death when you are around rockets. If Elon passes away, is it possible the successor will "milk the cow" without funding R&D? Yes. Putting all eggs in one basket is unwise.