Also, why is every character (except perhaps Maxos) an extremist to the very core of their being? the function of politics is not to choose one proposition at the expense of any other alternative, it's about everyone agreeing on a compromise that benefits the most people in the most agreeable way.
They're essentially serving as representations of those particular ideologies.
In this case it's about navigating politics through horse trading rather than compromise - give one group what it wants here, another group what it wants there. Taken together it looks like compromise because everyone gets some of what they want out of the decision-making.