We will defend ourselves to the last drop of some poor son of a bitch's blood, so that his survivors may dream of the trickle down prosperity which is just around the corner.
The printing press didn't make people free, happier, healthier, wealthier. Neither did the telegraph, the telephone, the automobile (although it can be argued that the automobile incidentally made us healthier), radio, television nor the internet. What is needed to solve the manufactured problems of humanity is equity, justice. That's not going to happen because capitalists will protect their bottom line, military men and politicians will protect their propserity and their power, doctors, lawyers, engineers and all the other membes of the professional classes will protect the exclusivity of their practice.
Culture, human arifacts, history--all of these change. Human nautre doesn't change. I've got mine, screw you.
On the other hand, we have antibiotics (plus the rest of the pharmacopeia), pasteurization, dentists, medical doctors, food safety, water safety, air conditioning, central heat, tractors, combines, grain elevators, sewage treatment, etc.
And this stuff really is trickling down to the developing countries. They've designed foot-powered washing machines. They've designed single-family water desalinization widgets that can be made from local materials.
We live in an amazing time. Even with war and hatred and terrorism, life expectancy is increasing.