Imagine how much knowledge and human progress had been destroyed by the plethora of socialist and communist regimes in the 20th century. The USSR, China, eastern Europe, and many other places literally collapsed back into the Middle Ages overnight once marxism was instituted. It is also well documented that industrial production under socialist regimes lack almost any kind of quality control, since nobody owned the facilities or plants, nobody cared. From the inspectors down to the assembly line shift workers. Just clock in and serve your shift like it is a prison sentence. Something screwed up? Parts missing or damaged due to carelessness? That's somebody else's problem. Once in a while on large and important state mandated works, such as spacegoing vehicles and propulsion systems, or nuclear reactors, if a fuckup is big enough that important people gets killed and the failure ruins the 'state image', everybody associated with the project gets executed or sent to the gulag. And then tomorrow, it is back to base one again, as if everybody forgot...