I notice that some anthropologist believe all humans were egalitarian in the past, and others believe inequality was more common they we currently we think with hunter gathers.
This seems to along with anthropologist using modern hunter gathers as way to look at the past which is now considered not a best practice from what I read. Which this influenced the egalitarian hunter gathers idea even more.
That might have been it, current instead of wind, those college courses are shrouded in memory fog :D I remember Heyerdahl getting brought up solely to debunk him, if that can kinda place where academics was at the time.