Since motives matter, the question I'd pose is:
Does Deus seek power so he can improve people's lives, or does Deus improve citizen's lives as a part of a path to greater power?
And I think the answer is undoubtedly "some of both", but it may well turn out it was 99% of one and 1% of the other. And keeping us in suspense as to the exact breakdown is part of the dramatic tension of the story.