The ability to overcome the odds, do the amazing.
How can you even measure that?
I'm glad you asked that question. What I do is hand them a green power ring. If they make it flicker or spark I'll give them a shot. If she gets corrupted and tries to take over the world, I feel like she would be jealous of my numerous female friends. BUT If she uses it to create cash to pay the bill, THEN she's a keeper.