Virtue cannot live in these lands

[Dellathane]

I'm still playing as the Welsh in my Viking campaign (As I over illustrate here)

As I mentioned the line of Welsh kings has gone mad (and drunk at the moment), but the problem is that all my generals seem to be equally useless in one way or another. I've had two Hero generals come through. Both have four command stars, one has the virtue "lawman", the other "Man of unquestioning faith" or something to that effect. In only a few years as the govenour of Pouis and the Champion of my armies the man who's faith was absolute had only three piety, no mention that he had ever know anyone called God and is now Very Lazy and nothing else. The Lawmaker retained his title but is now full of pride and very violent.

Is there just something wrong with my culture? Why can't even the holy men resist corruption of the soul?