I think for Elon, he has long figured out the same thing Donald Trump figured out that the way to success is by saying brash things that you are always in the spotlight and therefore always known.
Tesla and other stocks are not valuated based on the economics. They are meme stocks. Inflated because of gen y/z bros. Uber was the same way a few years ago when Travis was there. For as long as they are doing something "cool" like Tesla Robots, the stock will get attention, nvm that the robots were fake.
Without Elon, Starlink would get a more microscopic examination and it would likely not have investors' drive that a stalwart would bring.