The Tom Cruise pile-on is getting merciless. I know he brought all this upon himself, but still…whew. Here are some pals who expect to do business with Cruise down the road — Paramount honcho Brad Grey, Universal chief Ron Meyer, C/W partner Paula Wagner — looking to take some of the sting out of that USA Today/Gallup poll that showed Cruise’s favorability rating has dropped 23 points since last summer.