So what if they do? You can't let other people dictate your emotions or they will take advantage of you any way possible. That feeling of shame and embarrassment comes from within, not from the scammer, and therefore you have power over it, not them. There's no sadistic pleasure to be had if the victim doesn't care. If the victim doesn't care, why should the scammer waste their time? But just in case they do, good thing there's that facebook feature that hides messages from obscure users. By the time someone ever finds the message, you can just say it was a deepfake.
Just because it comes from within doesn't mean it's realistic to control it. People feel shame for complicated reasons, and to stop feeling shame about something would likely change parts of someone's personality. Maybe he or she thinks that only special people should see them nude? You can't just will that away. Plus, the perpetrator might be satisfied in knowing something like "now all her friends will know what a slut she is" or whatever those people tell themselves.
Not everyone is as "tough" as you. Learn to have empathy. Having your naked body sent to people you love is a grossly embarrassing proposition for most people.