Maybe they have an entirely different form of government than anything we have here on Earth.
Maybe there are war-princes and councils and the Electorate and they check each other for balance in power.
I guess we can also consider the fact that their government evolved over time. I can see how it could be so. With the new threat of the Yeerks there must have been huge debates and discussions among the general population. Then as the war progressed, and the Yeerk threat became more imminent (it seemed like the Yeerks was more than a nuisance), the government became more protective, enforcing more and more rules and restricting information "for the good of the public" through military might.
I can see how that can turn into a huge debate...you know...like "fight the Yeerks because it is our duty after what we've done" or "containment and threat of military and government control".
Of course....maybe the Andalites have a completely different thought process...