I agree with what you are saying to an extent, but have a slightly different perspective. What makes one culture more "valuable" than others? For most of us, it some of the things you just mentioned like putting men on the moon or the many other scientific accomplishments. I can understand and agree that the African, live in hut culture may be as meaningful to those that live in it as is our much faster, aggressive culture. I can also understand and appreciate those cultures that believe in sharing everything one has with others, especially family and extended family. Some would say the Indian culture was and would have been better than what we WASPs have made. It's a matter of taste and values.
What I can't tolerate are those cultures that are abusive, destructive and don't value each person....like the pagan, heathen muslim culture and those in which government oppresses, like china, korea, etc...