Unfortunately all these dreams are too idealistic and utopic to enact. Humans overcome and master nature with higher consciousness and intelligence, but this does not mean the possibility for equality becomes greater.
In actuality a more civilized society allows for the illusion to arise that such an equality can arise on the fallacious sensibility of peoples, who are overfed on luxuries.
Luxuries which have blinded them from the harsh and brutal nature of reality and life in general. Justice can never be achieved ironically through the might is right principle, which is totalitarian in nature, despite the nature of the socio-political system in place.