He views arcane constructs created by mortals as the next generation of creation, and seems to resent that they are forced to fight for the causes of mortals, just as mortals have been forced to fight for the causes of the gods.
He claims to serve Bane not out of piety, but simply because he believes Bane has the best chances of defeating the other gods.
Does he truly hope carve out a place for free robots in the wake of Bane’s conquest? Only time will tell . . .
Caidin is part of the force that has invaded the world where FanOut Gaiden takes place.