SpaceX raised only $12B of capital before going public. With that $12B, they revolutionized the rocket industry, built a global satellite network, and created arguably the most innovative company of all time.
The federal government spends $12B every 15 hours and still can’t get its shit together. Prior to SpaceX, NASA was sending astronauts into space on Soviet-era Russian Soyuz capsules.
So no, I don’t find Elon’s wealth to be a problem, and I wouldn’t trust Elizabeth Warren or Bernie Sanders to allocate a single dollar of it.