I would find it strange for anyone who's seriously interested in AI to have never heard of...
Those people you name are important only to the very recent micro-culture being discussed, not "AI".
Of all the names somebody interested in the subject would actually associate with the development of AI over the last century, those would be footnotes only.
I think that's part of the problem and why its seen as cultish, the obsession with the social over the scientific, and a lack of historical perspective.