Yes I know, warhammer 40000 is not supposed to be realistic.
But still I am curious. How is the inquisition, the inquisitors and the acolytes financed?
I personally think that it is a combination of funding from the munitorium which is trickled down from the inquisitor lords to other inquisitors and so on to their acolytes, personal sidebusiness with treasures founded on the inquisitors adventures and claimage of resources using the rosette to just take that shiny new landspeeder from the vendor.
I havent really grasped how much resources the inquisition or, more important, the individual inquisitors have at their disposal.
In theory, one could think that the inquisition have the might to actually claim the empire for themselves, due to their right to take over everything necessary for them.
But in the fiction it more seems that the individual inquisitors are quite limited in their resources.
. You can´t "win" against the Elder Cosmic Horros. All your fancy shotguns, pistols and gadgets are useless. All you can do is to sacrifice yourself in order to win a reprieve for humanity. )