re: Why does society worship science, but ignore natural selection in the human race?

Because physical prowess, physcial limitations do not necessarily correlate with someones mental ability.

We would be vastly less technologically advanced without the sort of medical intervention and research which you reference.

That is just the cold calculation reasoning.

Nobody wants their loved one to die from a curable disease is the real reason.

The keeping terminally ill people barely holding on and the amount of money the U.S. spends on end of life care is just cause this country hates dealing with or discussing mortality. So we are terrified of moving on