The solar deities work in a way that is, in a way whose details I cannot pin down exactly because I don't know enough about business, analogous to the business models of the phone company, the electric company, and the internet service providers and so forth. I feel that if I had a better handle on how all these competing companies connect you to the same power grid, the same phone network, the same internet, etc I might be able to explain how there are multiple unaffiliated but equally valid gods of the same sun.