I just made a connection with what Scott posted and with some info contained in "On Combat."
Grossman states something like we are living in the most violent times - in recorded history. It is true that murder rates have gone down significantly in the last few decades, but the truth is that violent crimes have gone up significantly. If it weren't for our advances in medicine, the homicide rates would be through the roof.
So related to what Scott said. . . we may be negating the deaths, but we have not actually done anything to solve the problem.