Just gotta appreciate Adventure Time's contrasting ways to write what COULD be just the same character, but due to creative characterization isn't
I mean the guy on the right wasn't even a monkey's paw kind of wish granter. The wishes he granted pretty cleanly followed common sense, he couldn't even prevent a wish he thought was unfair (using a wished-in creature to make an additional wish).
It's just most of the wishes made in that episode were extraordinarily stupid.