A random thought while mulling about dichotomies in English class.
It's really obvious what sorts of tropes I hate with a burning passion, isn't it?
Balance of order and chaos makes sense since total order probably brings about stagnation and total chaos gets nothing done.
But the balance of good and evil? How often in your daily lives do you go "Mmm! Needs more evil!" (in a non-joking manner).
A lot of people seem to think a world of only good means it'll be boring, but if you're doing good vs. evil (as a moral dichotomy... this thinking is even more flawed if you go with good vs. bad as stuff I like vs stuff I don't... if the world was only stuff you liked, it couldn't be boring because then you wouldn't like it!), there are plenty of ways to have conflict in your life without the interventions of dictators, rapists, terrorists, thieves, puppy kickers, pedophiles, arsonists... AND JAYWALKERS.
...like natural disasters, the weather being terrible, trying to get people to agree with you without punching them in the face, remembering that thing you told your friend you'd do for them, and trying to sell art.
Or maybe humans are bastards so we're under the impression that conflict that doesn't lead to sex or violence is not worth thinking about.