Why was Monica's spell called "Dunning Krugger"? That's a cognitive bias named after the two people who developed the theory and conducted the studies behind it.
So far the situation seems like this:
Bishop wants fame to ascend on that religious herarchy,
Big Centipede is a menace for the slave merchant routes,
Beastmen Coutry wants the Bishop's city to abolish slavery,
Bishop doesn't want the Centipede killed because he kills the slave merchants while...