What is the conflict in 'The Devil and Tom Walker'?

In Washington Irving's "The Devil and Tom Walker," greed is an enduring theme. It's what drives Tom to strike the deal with the Devil and the reason he continues to cheat the poor, despite having accumulated an impressive sum of money already. As Irving plainly writes, "he was not a man to stick at trifles where money was in view," blatantly stating that Tom pulls out all the stops when there's money involved. Tom's quick-tempered wife lost her life because of her own greed and Tom nearly didn't agree to the Devil's bargain because he thought he'd have to share his wealth with her.