The Power, the voting, the self direction is all one issue, humans use markets because that is the only thing that works to keep points on our usefulness to others in trade or at least our fitness to manage our resources. The scariness of AI is basically not understanding the constraints of a market actor that basically define them to be a servant. While there remain concerns about in group and out group preference excluding or including humans, any AGI of concern got intelligent and effective through a self selection process that either directly involves voluntary exchanges or allows them to be common place because it is the only possible way to measure the effective use of resources.  I have the beginnings of a market in a world of finite resources game I spend a few years on if you are interested.