I'm not saying that he isn't motivated by his individual financial gain. I'm saying that the output of his work isn't for peoples' financial gain. He makes cars, not financial instruments. And cars, unlike financial instruments actually provide value to society.

I'm not saying that people don't care about money. I'm agreeing that they do. And thus that it is important that as a society we distribute our money to enterprises that are actually doing useful work. Precisely so that people who are money-motivated (which is basically everyone to a greater or lesser degree) will choose to work for these enterprises.