Remember when Batman got superman's powers and basically cleaned up Gotham over night and then moved on to stopping crime all over the world? If not then look at the scans below.
Granted batman went insane and attacked his team for trying to stop him but the intentions were there. Clark's powers are wasted on him because he isn't completely dedicated to being a super hero. He is a hero because he feels like it's his responsibility to use his amazing gifts to help others; basically hero via not wanting to feel guilty. To further explain this, when Superman loses his powers and becomes a regular joe, who works 9-5, he has no drive to go out of his way to stop crime in his city, like say green arrow would. Superman is always in conflict with wanting to live a normal life and be a hero, it's that indecisiveness is why he doesn't actively stop crime throughout the world like batman did when he got his powers. I think if superman's powers were transferred to someone far more focused in stopping crime and who had no other distractions, it would be better utilized.