As O'Reilly said - you need to make it to the next gas station. If Elon Musk wants to launch rockets and make new car companies he's going to need to be profitable in that enterprise, or it's going to hurt a lot of people in a pretty short amount of time.
My point is this - he has to have profit as his main motive or he would fail. If you're going to change the world, you have to last long enough to do so. In order to do that, everyone involved has to be getting out more value than they are putting in. And that is profit.