"Society" doesn't make decisions, groups of people make decisions.
The way society forms mass-opinions and decides (i.e. by voting) on important issues is not easily split into groups of people making decisions.
Still I accept your mechanism because group decisions are a large part of society and improving that will improve society.
About the group project: If we can get everyone to be "genuinely rational" instead of just a bit more rational we will certainly live in a very different world. I don't expect that anytime soon though.
Does anyone know of a good article that illustrates how society is generally irrational, and how making society more rational would have huge benefits, because it'd be a very high level action?
I'm writing an essay about how to improve education, and one of my proposals is that a core part of the curriculum should be rationality. I believe that doing this would have huge benefits to society, and want to explain why I think this, but I'm having trouble. Any thoughts?
Edit: Part of Raising the Sanity Waterline talks about common ways in which people are irrational. However, they're all links to longer Less Wrong articles. Preferably, I'd like to illustrate it in a few sentences/paragraphs.