I just read a fantastic quote from Tim O'Reilly, the coiner of "Web 2.0", that I think is right on point for those of us trying to spend our time doing work that matters.

"You should regard money as fuel for what you really want to do, not as a goal in and of itself. Money is like gas in the car -- you need to pay attention, or you'll end up on the side of the road -- but a well-lived life is not a tour of gas stations."