I don’t think that selling your sexual organ is the same as selling another part, which is probably a big part of the distinction. If I were walking down the street and I saw a dude drop something heavy, I’d offer to help him gather it up and help get it to his car if it was nearby, for free, just to help out.

I would not offer to a dude on the street who, magically, I could tell never has sex and is in need of physical comfort, even for a significant sum of money. When I give away muscle usage, all I have to do is exert moderate force for a variable amount of time.

When I give away my sexual organ, I not only have to consent to having the sex, which can involve trauma, or potentially fatal disease risk, and just because I perform the act doesn’t necessarily mean I entirely consented or wanted to, my need for money may override that discomfort. It also means I have to get naked for them, which is vulnerable and may also involve trauma or discomfort.

And sex isn’t just that, it’s also physical, I have to exert force, and it’s also mental, most people expect some form of dirty talk, which is basically a skill, and the knowledge of different positions and when to change them, or the knowledge to know when to switch to and from oral or foreplay or penetrative sex.

Basically, sex at its best is extremely involved in many different ways that most other singular forms of work are not, or at least, not as simultaneously and intensely where if I wanna do my best just lifting something or stocking a shelf, is not even close to the same amount of emotional and mental duress on top of physical.