Which traumatized her, btw. As it did the majority of women that had their private pictures stolen and distributed.
Now, I'm not hatin on you, we all gotta learn some things as we go. But, as others have already informed you, having one's nude images available in one context doesn't preclude objecting to ones nude images being used in another. More important, it absolutely isn't the same as being naked with people around you, and you could be a porn star that consented to distribution of your performance and be perfectly valid in objecting to someone on set that isn't necessary.
There's a fundamental difference between images and ones body. There's a fundamental difference between having a minimum number of non-intimate coworkers present during a nude scene and having random other crew present.
We are all allowed body autonomy. It is the fundamental right, the right that underpins almost all other rights. That autonomy includes having a choice in who does and doesn't have access to seeing your body. That period right before this sentence is period, there's no exceptions, only violation of ones right to preserve access to their body.
To use a hyperbolic comparison, what you said translates to "why? She was raped once, so she should be okay being groped now." No, it isn't the same thing 1:1, but it is very much a useful analogy. She essentially got violated years ago, and being violated isn't going to make anyone less likely to object to further violation.