I think I might be inclined to say, on the basis of your response, that your circle may be a bit restrictive.
I have been hearing from the news lately that the "current" generation may be the first that can expect to not "do better" than their parents. What you are saying is that this was the common belief beginning in the middle to late 60s. That period in the nation, if not the world, was encompassed by a concerted effort to improve everything!
Yet you feel that the lessons were "why bother we can't effect any change." Had changes not occurred we would not have the President we have.