I understand your point and my post applies.
Everyone IS out to make money. However, if people cant be Donald Trump, they arent going to die of starvation in a gutter chasing the all-or-nothing dream. They’re going to get the best job they can. That’s how those jobs you’re referring to get filled.
You chose the career/profession that fits you the best. But if you knew coming out of high school that you had a good shot at being Bill Gates, I bet you would’ve given it a try.