Steal a villain's money for yourself, and it may be easy for him to take it back (particularly if he has no compunctions about killing you.) But what if you steal it and donate it to charity? Even if he can get it back, there'll probably be no way for him to do so without tarnishing his public image. Bonus irony is accrued if the charity in some way makes up for the villain's misdeeds. This is the ultimate way to punish any Corrupt Corporate Executive who's a Slave to PR. Compare Just Like Robin Hood, a slightly more direct (and frequently more violent) style of wealth redistribution.