Of course they could and of course it isn't. It isn't a justification so much as the mechanism that fuels it. It is just how markets work. They're meeting a demand in the market, and now they make a living off of it.
Though to be honest I don't follow the artist that closely and it sounds like they're far more into it than just their art conveys. I subscribed to them way back in I think 2020 before they took the porn pipeline.
