While I agree that most things require a compromise of two extremes, it is also important to acknowledge how they could result in worse outcomes.

Eg 1: You are sick; the doctor prescribes antibiotics. But you have some concerns about them so you only take it until you feel better.

But now the pathogen is still there, and it will rebound with new strength. (there's also a chance it becomes resistant due to selective pressure and its survival)

Eg 2: Compromise of democracy and authoritarian state. Those countries' governments tend to be more stable and enduring that are either of the two, but not a middle of the road. This is why the transition from one to the other is usually turbulent as well.