I think that it won't be long before a team calls that says, 'Just go do what you do'.
I would think flying would be pretty cool. You would be able to fly away from all your enemies and get where you're going much faster. But being invisible? You probably wouldn't use that for the good of man.
Nature, more of a stepmother than a mother in several ways, has sown a seed of evil in the hearts of mortals, especially in the more thoughtful men, which makes them dissatisfied with their own lot and envious of another s.