But of course this is in itself a choice of governments.
They could say that for drugs, unless the drug is produced and sold at a reasonable price, the company could lose its patent rights, just as trademark rights must be exercised in order to remain in effect.
These situations are not dealing with natural laws and they can be changed.
What incentive would there be for a drug company to undertake a drug program that has a negative expected value? Ultimately, someone has to pay the cost, society just decides if and where.
