If something is literally incredible, then it's prudent to stop and consider whether it should be believed or that you have made an incorrect assumption. In this case, you wrongly assume that Musk is somehow being rewarded for something that happened in the past, or for something that might not even happen. The reality is that the pay package will only have value if Elon manages to dig Tesla out of the hole.
Despite how much conning you believe Musk has done (I won't refute it), Tesla is a company that actually builds cars, and while the Cybertruck flopped and anyone could see that coming from a mile away, that doesn't really affect the Tesla bottom line. That Musk grifted the government into buying them doesn't really do anything besides saving Tesla some money.
I wouldn't buy Tesla shares, I still don't really see their crazy valuation, but I would buy a Tesla car, as they are ostensibly awesome. If you disregard all the lying Musk has done it's still an epic car with unrivaled self driving capabilities.
That he starts talking about something historically has been a sign that some part of it is going to be a reality. You can stand apart from the crazy people who worship the ground he walks on, and still appreciate that he accomplishes great things. Whether it's through conning and grifting, or hard work and keen insight, there are still an electric car company and a rocket company where there weren't before.
Just stop reacting to people believing or shouting things or grotesque behaviors, and just look at the actual reality. It'll do you a lot better than just believing everything Musk says is BS.