I think that this is very interesting idea. Actually I don't think that intellectual giftedness is what advances our civilization - i think love is what does it!
Love of learning, love of family, love of our neighbors, love of acheivement, love of being in history books, love of our destiny.
I was referring to people like Albert Einstein and Isaac Newton, but as I read your reply I started to think differently. I think there's a candle in all of use. An unborn star. I feel, many people who have achieved great things, like the Founding Fathers, Ceasar, Stalin, JFK etc. had their candle lit. They illuminated our universe and our history was changed forever. Bad or good deeds, history teaches us what is right or wrong by the use of consequenses. I'm not saying that bad leaders who killed many peoples were good, but I'm saying that their actions are people shaping ones. It is like a burning soul.