Should we see heavenly factions be introduced to counter the cults of the 7 princes?

Let me elaborate. So we have the cult of Black Grail, led by Beelzebub and (supposedly) an upcoming faction led by Mammon. Would it make sense to see a holy order sub faction based on the virtue opposite to the cult of hell?

For example, Beelzebub is the prince of gluttony so it would be cool if we got an order of Temperance; hermetic disciplined warrior monks (these sound a bit too close to observers) dedicated to counter Beelzebub and his black grail wherever it may appear. I would also take a order of holy assassins, anything that would fit into the idea of self control, moderation, and abstinence. I would love to hear people's brainstorming ideas of how to fit temperance into a warband.

Mammon is the prince of greed and the virtue that is opposite of greed is charity. To me, the only thing that comes to mind is an order that heavily favors machine guns and more dakka. Basically a "You want more? Here, take these 7.7 mm rounds to the face!" approach. How would you make a holy war order based around charity?