I think they do it by increments. Notice she says she was OK with the assassinations, but eating human meat was a step too far? They probably assumed some “dumb model” was OK with x, y, and z, so why not cannibalism too?

Ron Paul said that when you get to Washington as a new Congressman or Senator, they immediately send attractive women in to “bump into you” during dinner so you “hit it off” and go back to your hotel room with them. Part of this is for blackmail obviously, as these women are often under-age but look old enough, but I also think it’s the increment thing. If Ron Paul won’t go back to the hotel room with the paid floozy, then they already know he’s not going to accept bribes, or look the other way on assassinations, and they definitely don’t want to serve him a plate of human meat.