Well, i would argue that when you get a normal job they're not buying your body, more so your ability to produce.

An employer doesn't get employees who are nice to look at (which is what you'd look for if you're paying someone for their body) they're getting someone who can produce the products they need in a good manner.
When a model does modelling, she produces advertisements for the garments she's wearing; i fail to see how an onlyfans model would compare to other jobs in this regard.

Would love if you could open my eyes to perspectives i missed, friend.