Originally Posted by
Restingvoice
Okay so it sounds like it isn't about what he wants or if he uses crime fighting as a form of therapy.
He simply gave it away because somebody else needs it more than him and that he's scared of what he can do with unlimited power, since, if we go by the common interpretation, Clark is a better person than him, kinder, more understanding, better self control, while Bruce is mentally damaged, emotional, can get carried away, and often very obsessive and controlling. I can see him being scared if he gets that power, he won't be able to stop himself to be a dictator eventually, none of the bat family will be strong enough to stop him, and he can outsmart the justice league. He already scared of becoming like Joker or just general murderer, if he kills them, so he's scared with this as well.
Now whether he will become an actual dictator and murder or not, who knows, but that's what he's scared of, so he chooses to be a human who can be stop
Oh yeah that's why he built the knight whatever robot, the one created to take him down if he ever goes bad, and to take down anyone trying to stop it taking him down.