When people have what they need,but desire more and more things,we call this "greed." Do you think Mr.White is being "greedy" by asking for money he doesn't need?"

Yes, that might be considered greedy but this certainly isn't an uncommon trait. Most of us want money for things we do not need. Unffortunately, for Mr. White, he has entered into a dark bargain when he uses the monkey's pay to wish for 200 pounds to pay off his house.