There are a lot of parallels with people who got immensely rich while doing what they loved with no specific monetary goal in mind.

I think Notch represents quite well what a lot of us would be like if one of our software got incredibly popular overnight (We're talking worldwide sensation) and we got a massive amount of money out of it (Billions with a B).

Confused, dazed, surprised. "That's quite cool but I never actually meant for that to happen". Try to do good things with the money but end up with responsibilities we don't want regarding the product, the money and ourselves. Not be able to have a private life all of a sudden and wanting out of the drag.