Krawiec writes (I quote at length, but not the whole thing):
"...I agree with Kieran that financial incentives for human organs are more likely to win social acceptance if they resemble the gift-based allocation systems that have already gained social legitimacy. And the oocyte market – a clearly market-based system with the trappings of gift, including the language of donation -- is a good example of this phenomenon.
Much of what women have market power over, such as their sexual and reproductive services, they have long been expected not to commodify at all. Even when monetary compensation is allowed, it is often kept low and female providers are expected to be interested in rewards other than money.