If the drug industry had this kind of paradigm, no one would ever get well.
Empirically, it is easy to show the above is not true: There were drugs, and music, long before there were patents, the FDA, or the DMCA. Would you take a bet that both would continue to exist if the current intellectual property models stopped existing? How large a bet would you be willing to take, and would you give odds?
The question is trademark law. Music existed before there was a solid tradition of trademark law because musicians had royal patrons feeding them.
With few exceptions, drugs, contrary to your assertion, did not exist and were never developed in any meaningful way before trademark law.