If you want to think about causality here it would be more like: Group a: If(has(flammable_liquid)) Try to acquire it Group b: If(beha

If you want to think about causality here it would be more like: Group a: If(has(flammable_liquid)) Try to acquire it Group b: If(behaves morally) Prevent group A from causing suffering The group consisting of both a and b act like what you describe, but not because that's rational behavior.