There seems to be some confusion here. Allow me to explain: just because you've made yourself an important part of the food chain doesn't mean that you aren't evil.
Aztechnology survives because it is extremely powerful, has fingers in a lot of pies, and destroying it would hurt a lot of its enemies. This is why, even though they pissed off just about everybody, other corps have only acted to weaken, not destroy them.
Evil has nothing to do with utility. Sauron was evil, but hey, he had utility. Those other rings he forged did some awesome stuff for the people he gave them to, and he was Middle Earth's biggest job creator. The fact that destroying Sauron left Middle Earth with millions of unemployed orcs is irrelevant; the problems caused by him being gone were less awful than the problems caused by him existing. And even if they weren't, he would still be classified as "evil", just as Aztechnology is.
Back on topic, I really do wonder how Dunkelzahn's prescence might have changed the Ghostwalker/Denver situation. Would he have defended Denver from GW? Would he have joined up to fight those spirits? Would they have had some brews like brothers who haven't seen each other in a while tend to?