Professional joy can be about a lot more than just making as much money as possible. If anything is sad it's that someone fails to understand this basic thing. We're thinking, often fantastically creative beings, and our lives need not focus only on family, love and friends. They can also be partly absorbed by our external pursuits, professionally, as an outlet for all that cognitive power inside us.

Should the creator of the WWW be sad that it gave him joy? Or the scientists who programmed the Apollo missions, because they also made money off these things or worked for others while doing so at times? Or in a different direction, should a Picasso or Anthony Hopkins not take enormous pleasure from a life time of professional creation? Much more banal examples are just as valid, as long as they gave sincere happiness to those living them.

What a bizarrely narrow definition you have of professional joy.