Trev maybe the fallen e.g is a race that was blessed with the resources that the traveler gave to them cuz' they have a really advanced technology and the traveler used them for it's own selfish need and thats why they became scavengers and i also read that in one of the rasputins grimoire cards it was explained that rasputin attacked the traveler so it could'nt escape and abonden humans. But my point is that there may not be a "bad" guy here a thing who wants to preserve itself and uses lesser creatures for its own goals :)