[digbyloftus]

>Do you really think Tom Cruise deserves that much money for what he does?

People want to, and agree to, give him that money. What other measure of 'deserve' could there possibly be?

>Or that the world is better off with that money going to him instead of someplace else?

It doesn't matter. The world will be fine either way. People though? Tom Cruise is a person. The people paying him are people. They evidently think the arrangement is pretty good.