Yah, that's how it would seem to be, it you like being healthy and living an active life then it would be a logical step from there to saying "If I enjoy this just for the sake of it, why not get paid for it."
The part about having no emotional connection to what you do is spot on also. As an engineer, I have concerns about the projects I work on but not any that get my juices flowin', if you know what I mean....thanks for the reply.