Nothing wrong with what you describe but it won't change the world either. Some people want more out of their career than a comfortable life. Speaking for myself I've founded several companies, have run several others and I very much enjoy what I do for a living. I don't just want a basic 9-5 job with a few weeks vacation and a 401K. I want something more than that. I want to create successful companies. You aren't going to do that playing it safe or doing the comfortable easy thing.
I never said something like this was a bad thing, just that you don't push children into wanting to do something like that. Like you said, it comes from within.