After reading a lot of Ride Like the Wind lore, I see it more as a St. Patrick's trinity thing. Elmal is Lightforce, Yelmalio is Lightforce etc, but Elmal is not Yelmalio. One solar son per city-state of Dara Happa. What was important is that all these Lightforce stories can be mixed together to some extent and so Elmal the Orlanthi god of the sun was less "pure" in his mythical retellings than Yemalio, which kept more of the core Solar mythology and hence was seen as more of the god than Elmal was to Monrogh.
Not-withstanding all the various talk of Yelmalio being a Unity Council stich-up (of solar sons/Lightforce), which I don't know if it was canon or just speculation.
