I would have said something about how but the bad guys get killed in the end and run away. I wouldn't have said "but it's just a fantasy."

Not sure if I'm reading correctly -- are you saying that "she signed a contract and it's BDSM so it's consensual!" is the equivalent here of "the bad guys get killed in the end!" i.e. it's the Watsonian justification for being allowed to enjoy it without having to unpack it?