I think you're selling humanity short. There are plenty of ways to have society prioritize researching drug therapies for different diseases that don't hinge on reaping massive profit on the sales of the drug. See: public funding. I don't necessarily mean that through government/taxes, but it should certainly be an option.
Major drug companies fun a lot of drug trials, but they buy most drug research. That might seem like the same thing to US but if your country does not feel the need for FDA style drug testing you may not feel there is any need to cut them into the game.
I think you're selling humanity short. There are plenty of ways to have society prioritize researching drug therapies for different diseases that don't hinge on reaping massive profit on the sales of the drug. See: public funding. I don't necessarily mean that through government/taxes, but it should certainly be an option.