This is really the wrong thread for this, since it applies to officers only, but I don't want to make a whole new thread.

In my current campaign Iceland has had 95% zeal for about a decade now and I've noticed that every single unit recruited there has 9 piety. Coincidence? I don't think so. Can someone tell me if the two are connected? I never had any idea of it, but that seems to be the case. Sorry if this has been discussed years ago.