Moral slavery as you put it is one of those things that's bad for you but good for everybody else, unless you're bad at getting away with things in which case it's also good for you.
Another kind of slavery is doing whatever you want, because you don't decide what you want. What you want is determined by the often self-contradictory brain circuits that sprouted in your head without your intent or permission. That's something from the bible, by the way.
I recently heard an experienced psychologist claim that in 30+ years of clinical practice he had never seen anyone "get away with" anything. I was surprised by the statement. This would be Dostoevsky's Crime and Punishment universally applied. The psychological consequences of actions we take may be so deeply embedded within our DNA that they become almost impossible to escape.
God is nature itself. I am happy toiling in soils, studying plants, etc. I could just as easily 100% drop computers and engineering next week and live on my own farm toiling the soils, raising farm animals and be as happy as I have ever been in my life.
Another kind of slavery is doing whatever you want, because you don't decide what you want. What you want is determined by the often self-contradictory brain circuits that sprouted in your head without your intent or permission. That's something from the bible, by the way.