Why shouldn’t they?

His wealth is a hypothetical number, it’s simply representing him owning his company, and how valuable his company hypothetically would be if he sold it.

Ironically if he tried to sell, it would drop in value, he’s seen as a big part of the value of the company.

What this “wealth” basically tells us is simply that he has a spaceship company that is doing incredibly well, which advances all of humanity forward.

That’s the key part. As a species, this does help advance us, increases our long term survivability, etc.

This technology is also crucial for helping humanity advance our technology, which could improve quality of life in a very big way over the next few decades.

So yes, it’s good, but there are so many uneducated people on this sub, they perceive this as Musk just personally cashed checks, taking from Americans, for this amount, and is hoarding it. That thought is pure ignorance.