Pressure is supposed to come in with the police hot on your tail, problem is it's too easy to dodge the police IMO.
That and there's no real consequence for police notice, and overall I don't feel.... Stakes you'd emaciate with running a cult ya know? For a better example of how something like this could work, even though it's not an incremental per say... Look at Cultist simulator, that game actually has the pressure you feel as a cult leader through and through