You can have a market-oriented economy on small scales, and we can have independent professionals competing to see who provides the best services at the lowest prices, and we can use money and capital as the means of production just fine. The problem is when we take a system in one scale and think "bigger is better". This is when we get "amorphous amoral entities harming the greater good".
Mind you, if you think about it this also applies to other socio-political systems. Communism, per se, is not a problem. If the general idea of "communism" was just a bunch of hippies living however they wanted, there wouldn't be so much reason to be against it.
The problem is when you have people going full Trostky and actively work to make it a Global-scale system, effectively turning the State into an "amorphous amoral entity harming the greater good"