The best forms of government are those in which the leaders work for the benefit of the whole community. Little governments are actually good, as most act in favor of a specific social class, and not of the entire community. People tend to choose the form of government which benefits them the most, whether it is an oligarchy or a democracy.
Plato could argue that the Aristotelian citizenship politics is completely opposite to his own authority politics that implies the necessity of an authority that rules all the rest thus making the existence of a state possible under the correct laws and ruling imposed by those few who are able to rule due to their superiority.
The problem with the power in the state is that there are always groups that are unsatisfied with their leaders, so the best possible solution is to give the power to the many, as the masses will always be better judges than a single man or a few men. Indeed, it would be a mistake to give the power in the hands of unqualified people that are much more inclined to commit a crime than the previous highly educated politicians.
The best method to deal with low-skilled people that have to hold higher positions would be to either give them lesser important positions or to assign assistants to attend them.
The good citizens within a state can be good men as long as they hold high positions in the state, in consequence little citizens can be good men. This is due to the fact that good men hold virtues that help them a lot in reaching higher positions in the state. Surprisingly, this might prove to be a mistake, as those that hold virtue will always be advantaged and the others might never obtain an important position in the state.
Aristotle. Politics. Book.