I’ve always found it ironic that the purest examples of communist style central economic planning are found within capitalist corporations. Raise your hand if your company’s budget, hiring, and other resource deployment is done democratically, through a vote.
Big corporations are basically communist empires in this regard. I think the reason why capitalism won over communism is that capitalism has a large number of centrally-planned enterprises where natural selection can take place internally and the failure of any single enterprise does not hurt (and even benefits) the others. In communism, however, there's only one big plan that's "too big to fail".
With the added irony that Marx envisioned the fall of capitalism to start with workers taking over control of the factories they worked in, not by some vanguard taking over government by force.