Over at Cafe Hayek, a reader with much wit comments...
Of course we'll have no way of knowing how much the life expectancy would have increased without the "expense" i.e. the redirecting of resources that would otherwise have been invested and ultimately resulting in more comfortable and healthier lives for everyone.
This accounts for 5 months out of three years. where did the other 2 years and seven months come from? Who gets the credit for that? The short answer is from the very same things that result in pollution.
Don't think so? then how did that kidney get rushed from California to New York overnight?