Seriously? Like Are you actually serious when you write this? You seriously believe that the only difference between Musk and the huge number of people working on startups is that he is investing more money?
You do not think that it has something to do with working on hard problems that nobody thinks are worthwhile until later on. You also do not think it has to do with him actually solving said hard problems. You also do not think it has anything to do with him being smart enough to manage multiple fields like a physics, computer science, engineering and design and have in depth discussions about rockets and space explorations at the same level as he can about electric cars and software? You also seriously believe that someone who is motivated by money would go and try to start a private rocket company that can deliver people to Mars and is reusable? Seriously? They wouldn't just go make some web app and "flip it"? This response is atypical for me but it's hard for me to read this sort of response and respond normally.