I don't think that that is what people usually mean when they say that, and it's not really true either. The goal of the government is to maintain power and hop

I don't think that that is what people usually mean when they say that, and it's not really true either. The goal of the government is to maintain power and hopefully a stable society or something - money is just a tool to that end, and not a goal in itself. After all, the goal of monetary policy usually is inflation, which tends to reduce the value of money. And also, currency is not the only area where governments will interfere as they deem it necessary. Really, I think what you are saying boils down to "stuff that can have a big impact on society tends to be watched more closely by the government, and it's more likely that the government will interfere to maintain the status quo" - which is a valid point, but it's neither a particularly special thing with money, nor is there any guarantee that it's always to the benefit of the governed.