In my mind though, I think that what we are seeing there is more of a Ajokli-spiked-Kellhus, rather than just Ajokli. To me, Ajokli making pacts with Hell really doesn't make much sense, since he (seemingly) would already have tremendous power there.
This is why I prefer attributing all dialogue by Kellhus in the Golden Room to Ajokli because the implications are more interesting to consider, as far as my reading has gone.
We don't know anything about why Ajokli differs from the other Gods, why he's sometimes companion or foil, what he "sees that the other Gods do not" (as it's clearly not the No-God, as readers have long assumed, as per Cnaiur-cum-Ajokli at the end). We don't know that he doesn't have to make pacts with the agencies in the Hells to achieve his worldly dynasty.
EDIT2: It's also just occurred to me that the second Decapitant (who was presumably either Ajokli or Kellhus' own head) seems to have vanished when we return to Malowebi's PoV following Kellhus' salting.
Is that right? Most interesting.