[theskypirate]

Society itself is collectively responsible for this failure, not the patent owners. Funding could have been provided through charity, or through legislation. But this was not done, and instead development of this drug was left up to profit seeking investors.

It isn't the investors' duty to bankrupt themselves to produce this drug. They tried to find a way to get this produced through the private sector, and they found that it was impossible. It should instead be handled through the public sector, and it is the general public who are ultimately responsible.