The mere factual existence of a trade/market does not imply governmental or societal acceptance of that market. Going back to the organ example, if you search d

The mere factual existence of a trade/market does not imply governmental or societal acceptance of that market. Going back to the organ example, if you search deep enough you can probably find sites and examples of people willingly trading their own organs for vast amounts of money. Yet that doesn't stop the practice from being illegal, and in most of society's view, reprehensible. Governments exist, in part, for that reason.