Basically authoritarian governments want something, and don't really care what else happens as long as they get what they want. Fanatics want to run everything.
That is also not an accurate statement. Authoritarians can be motivated by greed (Manuel Noriega), or by a desired outcome (Queen Elizabeth), or by ideology (Pol Pot).
There isn't a meaningful spectrum that has "authoritarian" on one side and "communitarian" on the other. One is a "how" and the other a "why".
I would express it other way. Right wing dictatorships get support in middle class, while left wing dictatorships get support in working class. Middle class is better educated and more loving of order, so it's easier to structure society and even transitioning to a democracy. We did it in Spain forty years ago. Working class dictatorships need more propaganda, distrust elites (except the very people in politic power) and change, so the paranoia is much bigger.
There isn't a meaningful spectrum that has "authoritarian" on one side and "communitarian" on the other. One is a "how" and the other a "why".