Most undead lack their own will, and those mid-to-low-tier undead lords are either promoted or created by high-tier undead lords.
It's no exaggeration to say that their will is the collective will of the territory, naturally allowing easy shifts without rebellion, no matter how absurd the reason.
This situation greatly inspired Gaven, as it isn't confined to the Bottomless Abyss; it can extend across the lower and even upper planes, that is, all divine power planes.
There, he only needs to consider those divine power presences. The territories or God Kingdoms he governs, even his believers, inevitably highly assimilate with him, his voice being the voice of the entire territory, his will the will of the entire territory.
The control and divine nature force enhancement he has over the Slaughter Territory are certainly not unique to him.
