Except that you visited the "creations" and the realms that Kulle invented and he mentions that "I had to sacrifice much..." and looking around you can see the ceremonial tables and torture devices used to pursue his destiny. He has the same disregard for life as the Angels and Demons, he simply finds his purpose to be ample justification for his deeds.
I'm going to have to play those realms again, but I don't recall seeing torture devices.
Ceremonial tables, then look off to the sides as well. Also his mention that he sacrificed much, which was a twisted way of pointing to his deeds, without being overly specific.
I enjoyed the story and the character of Kulle. He at least stated indirectly what he did and what his goals were. The Demons were also forthright in their objective. It was the Angels who acted pious while trying to eliminate us that ticked me off the most. Sort of like the politicians in real life that are always after our best interests. Yes, we want to save you from the dangers of (insert vice); but we gladly take the tax money from the legal use of that vice and the dollars from the lobbyists supporting that vice.