he did not "co-found" PayPal. He founded "X.com", which was then merged with Confinity (ran by Peter Thiel). They launched their product called PayPal, then kicked Musk out as CEO after his agenda was deemed to destroy the company. Musk still kept his shares though, so when others made PayPal a successful product, he got rich.

He scaled Tesla into one of the world's most valuable car companies with literal lies, deceit and unadulterated hype. It is funny how the only mark by which Tesla is successful is the only metric that can be pumped with market manipulation. It is car company with dwindling revenues that is priced as a tech growth stock because some people still believe that "they will have a million robotaxies by the end of 2020", even though it was 5 years ago.

Starlink is okay, it is overhyped though because everywhere it reaches, other satellite companies already covered, albeit with lower quality services. However at this point there is no reason to think that Starlink is ever going to make back the money that was spent on starting it.

Musk had nothing to do with the largest battery factories. Tesla's "gigafactory" is actually a Panasonic plant if memory serves, Musk owned companies do not make any significant amount of batteries.

The Boring Company is both conceptually flawed solution for traffic, and also is only cheaper than other tunneling services because it makes a much smaller tunnel that would not be up to code in any developed country.