A free marketeer, as you say, would say that the reason nobody is making more antivenin is because the "process for applying" is so expensive - but of course, there has to be quality control, and more importantly, there's every reason to believe that the manufacture would be more expensive than the applying.

Govt regulation is used as a scapegoat. The market for creating this product is just not desirable, because snake bites are extremely rare compared to just about every other medical malady. There was a reason the original manufacturer willingly gave it up in the face of no competition.

Public health is a public concern, and should be funded with public money. It is cheaper in the long run because of increasing working years/tax dollars, and reducing bankruptcies, and reducing the number of orphans, etc.

Even Mr Invisible Hand, Enlightened Self-Interest himself wrote that the whole edifice of his economic philosophy had to rest on the foundation of respect for human life -- and compassion: http://en.wikipedia.org/wiki/The_Theory_of_Moral_Sentiments