Government is a tool, and whoever is powerful enough can and will use that tool to pursue their interests. Yes, the government serves the rich under capitalism, but the problem is the power of the rich, not the tool. Throwing out the idea of government or limiting it is foolish because 1) it’s throwing the baby out with the bathwater, and 2) if you’re in a position to limit the size of the government, you can just use it to do good things instead.