I love to eat with a roof over my head, and I love to sleep in a warm bed.
People start doing the jobs they don't want because they want a large house, two model-of-the-year cars (leased of course), the 40+ inch HD tv, etc etc etc.
Doing what you love is easy to say but most people choose to forgo doing what they love to own (or at least use temporarily) what they want.