When it comes to personal enrichment, people are very good at convincing themselves that they can get away with it and that the harm done will be minimal. Traditional countermeasures are to try to counteract these tendencies by making them believe getting away with it would be impossible or that even minimal damage done would be unforgivable. The reputation of the Grey College is great for the former, especially when you've sufficient grasp of bureaucracy to back up your threats with random spot checks. As for the latter, faith and patriotism are safe bets. So you set to building twin sets of accountability infrastructure: one for the EIC, and one for the Temple to the Gambler you're building.
The EIC a straightforward matter, as there is already a strong streak of patriotism within the company, giving you a good pool of candidates to draw from. They are to focus on actual misconduct that might threaten the Empire or the EIC's relationship with it rather than mere accounting irregularities, so you don't foresee any major conflicts of loyalty. Anyone misbehaving seriously enough to attract the attention of the newly-formed division would be betraying their friends in the company as much as they were the company itself, after all. And the first few examples will serve to make it clear to everyone else that the consequences will be severe and unavoidable.
The Temple is a trickier matter. One of the first decisions you made was not to engage in player-versus-house games to prevent resentment from the patrons and adversarial thinking from the staff. The Temple will fund itself by taking a rake from the card games, a commission on the bookmaking, and the sale of beer, ale, wine and liquors to the clientele. Hiring from amongst those Undumgi who have taken wounds that won't allow them to patrol any more gets you the bar staff, but for an affinity for cards, an ability to spot cheats, and to honour the Gambler, you need to recruit from further afield.
[Recruiting dealers and priests: Piety, 73+26=99.]
You reach out to Heideck, and make it crystal clear that you're looking for those dedicated only to the Gambler, and that any Deceiving or Night Prowling directed towards Dwarven hosts or Undumgi protectors will result in very harsh consequences and you'll not be shielding anyone from them. He says he'll put word out, and you turn your attention to other matters until the faithful begin to trickle in. Retired merchants, battered mercenaries, sailors seeking good solid rock under their feet for a change - all people who have spent a lifetime entrusting themselves to Ranald and are quite ready to instead facilitate the chance-taking of others. One quite convincing card sharp got quite a way into the interview with you having only barely set off a few minor suspicions, until he stopped mid-sentence, listened to the sliver of Ranald's attention that had just turned your way, then apologized and left.
By midyear, the Temple begins to fill with those knowingly or unknowingly paying homage to Ranald. Anyone seeking to cheat was very quickly seen through by those that know when the Gambler is suddenly supplanted by the Deceiver. And under the watchful eye of a newly brevetted Lieutenant Snuggles, the cat statue became the perch of choice for Karag Nar's small but growing feline population.
