[golergka]

> The author’s conclusion that Plato was working for the betterment of humanity is simply laughable.

Many adepts, and, arguably, most of the leadership of horrible totalitarian ideologies of twentieth century have honestly believed that they're working for the benifit of the whole mankind. (In the meanwhile, western capitalist democracies, which managed to actually benifit mankind the most, were run mostly by people pursuing their own self-interest). Why don't you think that Plato have had the same idealistic devotion?