Now that you mention it, Die Hard did have two enablers. The reporter on the inside, actively sabotaging efforts and putting people in harms way. It's been a really long time since I've seen it, but wasn't he directly responsible for putting a few people in the path of danger?

And the police captain on the outside.

And the both sabotaged the heroes from engaging the threat....again, at the cost of a lot of lives and damage.

And so it goes.....

I'd forgotten about that douchebag police captain. Yeah..you're right on him.