I'd argue that the whole damn system was either corrupt or broken beyond repair. The fact that they "won" in the end and got to simply go on with their lives is pretty much evil winning out.
It would also have been a much more interesting story if they let Clyde win or escalated the havoc he unleashed even further. But it seems they ran out of ideas and or budget by the time they started wrapping up the final act. So that's a second time evil wins again.