> Musk has built orbital rockets.
Musk has built lots of cheap orbital rockets. That changes everything.
> That's disingenuous and you know it. Why make such claims?
See the other responses in this thread.
> lots of cheap orbital rockets
It's valuable for sure. It's nothing like, "The one person who is advancing our space faring abilities by leaps and bounds". There are many others, and many are doing more (again, NASA, etc.). JPL's homepage says "Our missions have flown to every planet and the Sun ...", and that they've been on Mars for four years, so let's be serious and not throw wild absurd claims at the wall (very Musk-like, though!).
It changes the price and speed of satellite internet. Apart from that...?