I've read about that discussion but lacked the energy. :-)
(Anyway, your link might have a point in that the inherited dictators might on average be less actively evil than those that crawl to the top of the heap. That seems like arguing that some cancer form has a little bit less mortality than lung cancer. It might be true, but the practical/emotional impact is low.)
http://news.ycombinator.com/item?id=571797