Cults for everyone!

So Mummy and Geist 2e both have cult rules, they are different in a few ways with mummy's being more involved. But overall appear mostly similar. How feasible would it be to extend these or similar mechanics to other supernatural beings? I know Requiem has shadow cults for the Mehket, not sure how similar they are as I don't have the 1e book with them nor the fanmade clan book that I think updatetthem to 2e. Mages and Demons both also seem likely to have cults, though they have their own merits for that already.

Would it be unnecessary to make any changes to the Mystery cult influence merit for Mages? Or would something like Mummy's/Geists system be useful for say a Silver Ladder Cryptocracy? What about an Unchained who wants a more useful cult than what the merit provides? I know Demon is more 1.5e so it predates these updated systems.

Im mostly curious what other's think about hacking the system for other games, I posted previously about Troupe play and Mummy and Geist both use Cults/Krewes to facilitate that. So it seems like an approachable way to extend that to other gamelines. I could imagine mage cults differing based on the Order or if the cabal are independent. And Demons building cults around their agendas, like saboteurs being terrorist cells or an integrator making a self help group built around "teaching love to God"

What other supernaturals would have interesting versions of Cults? Or am I barking up the wrong tree entirely and extending these systems to others just muddies there themes and styles?