Subject: What is the evolutionary basis of a state run health care system

Resubmit of question 
Re: What is the evolutionary basis of a state run health care system
I have been thinking about the evolutionary mechanisms which would either 
select for a state run health care system which is paid for by equal 
taxation like in the UK or to select for a system like that in the US 
where it is largely private and health care depends on the ability to pay 
of the individual. Has there been any theoretical research on the basis of 
these two systems? 
I got the reply: Hi - I'm not certain in what sense you're trying to apply 
evolution, or 
what specific evolutionary concepts you are considering?

I think that I am asking how would evolution force the selection of one 
healthcare system over another, or even does evolution have a role. I do 
not know of any concepts which consider this, so I would like to know the 
current theories on the subject. Are systems like altruism involved?
Thanks 

Re: What is the evolutionary basis of a state run health care system