Letting rich people use their money

Freakonomics blogger Daniel Hamermesh writes:

On the demand side, however, allowing people to bid for organs seems repugnant to me. (I do not want livers — except perhaps foie gras — on eBay!) Ethically, it seems wrong to let richer people move to the front of queues for scarce organs (to let the market implicitly value their lives more than those of poorer people).

Wrong? The rich people move to the front of every other line. I think that it is a little strange when people say that rich people can use their wealth to buy almost all goods and services, but not certain others.