One more rocket-boom and SpaceX and Elon's pocketbook were done for.
Here's a few very consequential decisions that were taken under Musk: liquid methane instead of liquid hydrogen, same engines for first and second stage, full cycle combustion engine, usage of steel for Starship, and of course, reusable rockets. None of these decisions were close to being obvious. When you have hundreds of very passionate and talented engineers working for you, you'll be bombarded with lots of options. If you don't become a mini-expert yourself, you will start delegating lots of decisions, and the final result may or may not be optimal. Just look at Boeing.
I'm assuming you're talking about Boeing's screw-ups with 737 MAX. If so, you've got it backwards. The 737 MAX's design issues were precisely because the leadership (i.e., non-engineering management) wouldn't delegate to the authority of the experts (i.e., the engineers) and forced their own decisions on the project. They did not become "mini-experts" themselves, sure, since they didn't actually put in the effort to understand what the consequences would be, but they did treat themselves as "mini-experts", as evidenced by their "we know better than the engineers" attitude to the concerns that were raised by engineering during the development of the MAX.
And yes, most firms are command economies, after all. As CEO...
I'm sure he had enough money set aside even then from PayPal/x.com that even if SpaceX had gone belly up he could have bought a very nice house somewhere and lived in a very comfortable lifestyle for the rest of a human lifespan just living off the interest from $15-20 million.
https://youtu.be/AeeeEDSekG8?t=3663
[EDIT: in this interview he talks about the fact he had “no money” and had to borrow money for rent around that time]
On the other hand if musk keeps doing loony shit like this we now have Howard Hughes v2.0.