AGI is orders of magnitude more advanced than what we currently have available. It is a self aware system. Most of the issues must be addressed internally, but ultimately it is self regulating in every respect. There would be redundancy, and an element of design trust built in. It would not be corruptible like humans where we must be skeptical of our governments. In some respects, it is the hacker, it is the internet, and it is Orwellian in scope, but it is not authoritarian, or ideological. It would be direct and openly available for everyone to consult at any time. It would be capable of explaining anything in easily understood language according to the capabilities of the end user. The primary way it shapes policy and changes for the betterment of the majority is through rewards and amenable compromise. Ultimately, I think this is the only way to manage a real post scarcity society.