But that would be a group of people choosing to behave that way because of their beliefs (and that is something I can use in my games), not because there is some cosmic force that enforces lukewarmness in the multiverse, something that makes no sense as it forces Good to be Actually-not-Good, or do some ridiculous mental gymnastics for that premise to work as written.
C'mon. Come back to reality. There is a cosmic force already that enforces lukewarmness in the multiverse.
I know this for a fact because I once had the misfortune of eating at Denny's.