Any religion must produce Mindfulness (Self), Humility (Others), Piety (The Universe).
The Best religion produces Excellence (investment), Truth (word), Reciprocity (action), Duty (Compensation), Charity (Insurance).
The reason christianity spread is that until then the underclasses and women had no means of obtaining virtue. Christianity provides virtue or the illusion of virtue, even if you do nothing except refrain from doing bad.