A Real Human Bean
and a real hero
Central planning was a necessity when those ideals were applied (especially at the magnitude of millions). No system works exactly as intended.
There's nothing inherent in a Socialist organization of society that necessitates central planning. Some people believed in a kind of authoritarian Socialism that attempted to force the will of the people, which was directly antagonistic to popular Socialist (which would later be termed libertarian-socialist, or anarchist-socialist and other such creations) thought of that time.
Look at the CNT during the Spanish Civil War for an example of a successful practice of real Socialist ideals in a society. There's no reason to believe that that those results couldn't be replicated and improved upon today, on an even grander scale.