Here's an hypothesis: A fundamental model of politics is similar to the model of innovation in markets: The status quo power and the challenger or disrupter power.

The status quo's power rests on its institutions, stability, and the fact that it is the social norm - generally humans are tied to social norms and attack anything that violates them. The challenger, to succeed, needs to disrupt the institutions, stability, and norms, and one tactic is to just constantly attack them, regardless of the consequences, as a means to the end of taking down the status quo and gaining power.