Sure. I actually supplied two. So?
Well, at those times, when the Marishiten cult was important to warriors, winning at war was the bushi job*. When mantaining peace became their role, Marishiten cult went down.
So I think the traits cultivated via Marishiten cult had not much to do with preserving peace but with prevailing in the battlefield.
*As Asakura Norikage said: "Call the warrior a dog. call him a beast: winning is his business"