Just to expand on it a little bit. Our characters are basically free workers for him and his company. We disperse throughout the planet gathering money/resources that would otherwise be forgotten (in boxes, chests, etc) and spent on other things.

Instead by creating an environment of conflict, he could repeatedly reap from us income that would have never gone to Hyperion. (Some what like a tax on death) We are little autonomous ants unsuspectingly fueling our own cycle of death and rebirth in order to fund a madman's schemes. Ironically, we could just all leave, and eventually Jack will just bankrupt himself. (Because as all plots go, he would never find what he is looking for without us.)