In Poul and Karen Anderson's Roma Mater (London, 1989), the Speaker for Taranis speaks of winning concessions from the Roman Empire, then adds:
"'I seek the welfare of my city, my House, my sons, and myself... What else is there to strive for?'" (p. 159)
That question almost answers itself. Other cities? Other families? The Empire? Civilisation? Mankind? The world? But that would be asking rather a lot of an Ysan. His Gods have a covenant only with his city, not with the world. They are the sorts of Gods that you make deals with out of expediency, not as a result of any higher moral obligations.
So perhaps there are two moral levels higher than that of the Speaker? -
devotion to a truly universal deity who is served only because of His goodness, not because of any specific deal that He might have made with the founders of a single city;
dedication to the welfare of humanity whether or not this has been ordered by any deity.
Polytheism, monotheism and atheism: from our historical perspective, we are able to assess these three world views.