"I'm interested in talking about that ethical line, where it is, and what the consequences of that are for women. If women's bodies are commodities to be purchased and consumed, that is bad for all women, though it impacts wealthy women differently'
I am interested in talking about that ethical line, too.
Obviously, there is no consuming of bodies since they are not used up.
As for purchasing: Does hiring someone for services she provides with her body constitute "purchasing" that body? I think not. People provide services with their bodies in many different walks of life - modelling for artists, menial jobs such as giving massages, building, professional dancing, even professional sports people. When we watch Wimbledon finals, are we purchasing Nadal's body? I wish
You can talk about renting someone's body, and personally I don't see a problem with that as long as you are renting it from its owner iyswim. My body is my own to do as I wish with, and I'll rent it if I want to. Do you not agree?
Ethically, I don't see a difference between being paid to get naked and pose for many hours per day over months, and being paid to grow someone's baby in my body. Neither are jobs I would ever want to do, but if I find myself broke I might do them - I don't see an ethical problem with either.
The only difference between them could be if you assign a special (ethical) value to making babies as opposed to all other services provided by one's body, possibly via religious or spiritual reasoning. My mind doesn't work that way, so paying someone to gestate a baby, give a massage, dance on stage, pose naked for an artist, or strut on stage modelling some new fashion don't appear much different to me.