The idea is that you shouldn't start your reasoning process from the conclusion, if you want to be rational. For a rational person, conclusion is what they get at the end, after weighing all available evidence, not a starting point.
Specifically, you don't know whether "rationality would be beneficial for the society". So you shouldn't start at this point (the conclusion). What if you are wrong (but there is a selective evidence you could use to support your conclusion anyway)?
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.