It all comes down to the narrative structure really! Sorry to get meta in what is ostensibly a horny ask box but it's true! All sorts of bad things can happen to Valence to get her down and out and mind broken or group fucked or any other perverted scenario, it's just that she comes around to win and fight or fuck another day! The joys of ongoing serialised storytelling!

Plus it's not like heroes consistently remember or think to use all of their powers all of the time. Y'know how does anything bad ever happen to The Flash? Really think of any specific mentions of power use to avoid a situation as more of a subtle "Hey I'm not sure that I can pick up what you're putting down" than a "I would totally power scale out of this pornography."