Studying political science, we often hear about regimes that have seized control of power in other countries, but sometimes this outright corruption and seizure of power can take place on a much more local level. For anyone familiar with the 1967 television series The Prisoner, towards they end they did a "fun" episode with a Western-style subplot. It's basically just another version of the show, with all the elements of a standard episode, except given a Western setting, and at the end they tie it in with the rest of the storyline by revealing it's all part of a dreamed artificial reality mind control experiment (not unique to just this episode in the series). Read about a real life version of this that actually happened: https://en.wikipedia.org/wiki/Battle_of_Athens_(1946) As they say, liberty and free elections aren't just something that's always inevitable.
Here's a summary and a little bit of analysis on the episode: http://biggaylongcat.blogspot.com/2010/12/prisoner-challenge-living-in-harmony.html
Political science can translate to any size groups. If you watch any post-apocalyptic movie and see various groups form from the roving gangs to the survivors hunkering down, it all can be translated in political science to a societal level also. The same things have to occur for power to be assumed.