Evil Gods, these entities, some do not spread in The Mortal Realm, while others have followers among humankind.
For an Evil God, becoming an Earthly Immortal is like having the perfect proxy.
They exist to spread their faith and gospel, a phenomenon that has been around since ancient times.
Gongming Yue knew that the so-called "four…"
Were just those four who, in Remote Antiquity, were merely among the many Evil Gods, but they were so powerful that they took control of everything in The Mortal Realm.
Beyond them, there are the Star God Emperors, incomprehensible beings who lean more towards the 'Demon' type, acting in defiance of the norm to make their impact on the world.
These Emperors are much like them, and if one commits to them, the benefits can be immense, only if the Heavenly Venerate treats people as puppets and tools, the Emperor disengages, forcibly transforming them into whatever they desire; and if one can't withstand it... that's their own fault.