Someone abuses a child, film it, put it in AI. And they now have that child's model.
Throw away the child and they're currently guilty free if any charges. Of course that won't be enough so repeat the process.
It's not like someone is creating a model in blender and than running that though a AI. Not like that doesn't happen anyway.
If you had the opportunity to tune your AI with photography than to self generated where true photography of a pig which produced higher quality less defects on generation why would you not go for such?