And many of them find great pleasure in doing their work well. We live in a world of sound bites and instant gratification. But instant gratification doesn't gratify for very long. It leaves your deeper needs unmet. On the other hand, you can't live a full life if you feel guilty about pleasure.
Guilt is useless.
People and institutions may try to prevent you from seeking pleasure. They're only important if you let them be important. Shrug them off rather than resenting them. Rebelling against them by obsessive pleasure seeking is also playing by their rules. You should play by your own rules.