When a woman chooses to make a commodity out of sex, or a commodity out of her presence, then she is selling it for money. It's all very simple, most men want to buy the sex. In the meantime, these men are confronted with her personality, so they make efforts to make the experience smooth for her so that his experience is rewarded with good sex. Most men are there for sex. Some are there for other reasons, but these reasons are because they want to buy something they can not have. That SPs on this thread choose to focus on the very small minority of men who are not buying sex from her is sign of the delusion they wish to engage in, I believe because at some deeper level the trade is discordant to them. It would be far more honest to admit that the whole of their experiences is that 90% or more of their "transactions" are purely sexual.
As for those who say that SPs perform a valuable service to society, it is once again something that is trumpeted selfishly but not necessarily true. My SP-GF told me that what she does is perform a valuable service to society. I then reminded her that were it not for people in her trade, her husband of 20 years would not have found it so easy to cheat on her again and again, and run off with one leaving her with kids to take care of. When she was his wife, she would have killed her husband. Now that she is an SP, she excuses married men who see her. Offering sex for money caused her the delusion that made her forget she is helping to damage the very same kinds of relationships she once had which broke up her family and affected her children.
The sex trade is a convenient market to get sex, which enables many men to cheat. If there were few working girls, it would not enable that kind of behaviour when things in a relationship get a little rocky.
Being a john, of course I am part of this equation. Many speak about respect to the SPs, but frankly real respect starts only when there is truth on both sides.