In this particular case, most of the bill is for the anti-venom treatment course. Anti-venom serums are pretty expensive to produce, and if you do not know the exact species of animal the venom came from (which often happens if the creature was not killed), they give you an anti-venom cocktail serum that covers all the common venoms in the region. It generally requires a couple days in the hospital too because the damage to the body from the venom can be extensive even though you survive, it depends on how lucky you are.
Proper treatment of pit viper envenomation is going to be relatively expensive in any country. It isn't like treating a broken bone.
In short, capitalism.
The same toxic structure is at work in the US penal system.
Are you for real? Nearly every aspect of medicine in America is regulated: from the number of people entering training to become new doctors, to whether a procedure will be reimbursed and at what rate, to what devices and drugs will be permitted for sale, to whether or not physicians are allowed to unionize, or discuss what their procedures cost (they are not in either case).
Whatever your ideology is, it doesn't change the fact that the health care is one of the most heavily regulated industries in our economy.
Turning over a few rocks and we can quickly see that the cost of administration of medicine, including devices, pharmaceuticals, etc. is also wound up in this dance of maximal profit at all cost. This doesn't even begin to examine the cultural role capitalism has played in the legislation the enshrines the administrative layers to preserve profits for the corporate entities.
The last concern under such a system is the person and their health, or the ethical-societal implications, because such a model provides no such metric.
Capitalism, in pure form, is a political system (this is not a typo - I did not mean to write "economic") in which a strong central government protects the individual rights of each of its citizens (mainly by going after people who murder, theft, fraud). A capitalist government does not regulate industry.
Despite what you say above, what we have today is not capitalism. In healthcare in the US today, it's 80% state control, 20% private (if not 90/10).
I'm not going to comment on the rest of what you've written because the above is a more fundamental point, and we clearly don't agree on it.
eg. In a province of 4.6 million there are 2 MRI machines, and its a 2 month waiting list because they don't even bother running them 24/7.