HOW DID SATAN TAKE OVER
Eric Kaufmann's writing on how academia became more left-wing over time likely has relevant information for your "structure vs chance" section. One of the most startling facts from his work is the sheer speed with which TV became a household phenomena:
"The growth of television was even more dramatic: from 9% penetration in American homes in 1950 to 93% per cent by 1965. ....The New York, Hollywood and campus-based nodes in this network allowed liberal sensibilities to spread from a small coterie of aficionados to a wider public. "
from his book "Whiteshift"