I don't think there is ever a direct connection between the philosophical community and the wider populus. I'm very aware of this because I've been working on a book on ideas in global philosophy and you always find some kind of relation between the dominant philosophies in a culture and the folk philosophy but it's not a straight-down dissemination. It's partly bottom-up. Thinkers are the products of the cultures they grew-up in. They aspire to thinking purely objectively and universally, but they are often reflecting ways of thought that are embedded in a culture.