It's been half functional for a while, some NPCs will draw a few thousand credits a month while others won't--the implementation is just incomplete in this regard. It may have been completely nonfunctional back when there was a faction clogging up the monthly jobs, but since it was cleaned up so most monthly tasks run now.
"On two occasions I have been asked,—"Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?" I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question."
- Charles Babbage