As usual, Ancient Greeks had it figured out already. Aristoteles wrote: "make war to have pace. Do business to enjoy leisure". That's the natural proclivity of 99% human beings. The other 1%, for whatever internal reason, does work for work's sake, and is often pushing civilization forward.
People with high-paying careers rarely choose to radically reduce their work hours after achieving financial security. I don't think the idea of doing great work often enters the equation.
