It does, for a while. Until it doesn't. Without exception, every criminal enterprise is eventually discovered, and its perpetrators pay the piper. It's not because they are stupid, mind you, it's because they are greedy and develop a god-complex. Rarely if ever do you see someone who's bent on stealing other people's money stop after one or two successful heists....

I know this is little consolation to you, but you need to grow faith in the fact that he will pay for what he/she did.