Private in this example, is the lesser evil and still has limits because they have to deal with market forces with a cap on their balance sheet; if they're not hedged correctly, they can still get their faces ripped off, and if a government isn't there to bail them out its tickets.

Private companies have a responsibility to make money, whereas governments don't. They can just print it up from thin air. Also, if there wasn't such exorbitant pillage by big players to access capital and create credit, how would they go about manipulating markets at mass? It's only through the government provides the backing

If they had black rock bucks and tried that same stuff, people would bankrun them in a second.