.....Ow. Think I actualy felt physical pain at that last one. I must admit, you do bring up some interesting ideas, most of which are crafted to hurt my will to exist on the plane of the living.
While I will refrain from possibly embaressing myself on matters related to arcane magic (But I will state that there are plenty of spells functionaly the same in use that does not, in fact, require the divine, but uses varying creatures from other plane's or even certent members of the more betenticaled Powers That Be.), I can say for certent that if you look at any undead creature you might see the same thing. Take a glance at a mummy and see if it's god still pay's attention. Oh, yes, they do.
Or perhapes look at any of the local Lich population and see that they are, in fact, deep down, exactly how they appear to the outside world. Dry, aged, and so vain as too merge there soul and there body as if they wished to pretend to be a member of the Lights Apon The High. Simple materialism. I have the decency to admit when the jig is up and find a new home. But they eagerly cling to there mortal shells like a child and there blanket, occasionaly finding new things to stich on it. The Bleakbane is simply a creature subservent to a higher power who has nice toys to play with.
To put it mildly, I would say that if what you see is correct, than it's hardly noteworthy compared to what other's around you are in reality. Also, I prefer to call the substance inside my rotten form as "essance of the mind". Pus is a substance that I would only use in discribing what make's up Boffensparks frontal lobe.