You gonna... you gonna be constructive, or just take sarcastic shots at people? Friend? Coz if it's the latter I don't see why you're here.
Big difference between killing for nourishment and killing for necromancy.
The fact all things can be talked to through the Echo (be it our own, or Krile's own more beast specific ability) at least implies all souls are the same at their core. Whether it's incarnated as a dog, a person, or a behemoth, a soul is a soul. Leaving out the Sundering (which obviously influences aetheric density) Ancients' souls, or the souls of sentient / sapient things, are special because... why, exactly?