that was result of naive 19th century scientific believes. society made huge leaps in inventions, science and development that was created illusion of all power might of the human mind. that you can solve everything in perfect order by applying human mind to that. in many areas it was wrong and humans were played with things they barely understood. marx is manifestation of these naive believes and desire to bring thinking order into chaos of the economy. mind you modern economic theory was in infancy and developed in parallel and in no way was universally recognized    nalism
Anarcho-Capitalist