Ya they do. Some very powerful ones. Or else they never would have been allowed to get to the point they are at now.

If they get big enough they will get a haircut. They won't be allowed to actually rule for long probably. But as long as they keep causing trouble for the enemies of enemies they might be allowed to keep taking over caches of weapons (whoop!..but hey, we aren't arming terrorists! they just stole them!).