One of the most common failings of the human brain is to impose a pattern on something ambiguous, because we hate ambiguity. Hence conspiracy theories, hence religions. The idea that there "must be a reason behind it" lies at the heart of every major intellectual mistake related to human behavior. Musk is basically an ADHD fanboy whose only skill is taking money from gullible investors. His great fortune is to have benefited from the engineering skills of countless uncredited tireless workers and leveraged this as though it were his own doing. Remember: Musk is the guy who apparently didn't understand even the most basic aspects of Bitcoin and thus had to stage an embarrassing retreat when better-informed people became agitated at the contribution to climate change being made by bitcoin mining.

The hard reality is that Musk has no grand plan. He just skips from infatuation to infatuation, rarely if ever thinking anything through (his Starlink game is ruining terrestrial astronomy but won't be economically viable because people in remote areas not presently served with Internet connectivity can't afford the cost of a Starlink subscription). When someone seems to be acting like an impetuous empty-head, it's 99.99999% certain that this is the reason, not any imaginary Grand Plan.