I know what has been said about your luck being misfortune to others, but in my experience it doesn't work quite that way (and I love to play with Luck scales, oh and Turmoil too, but that is because the small subjugated Reveler inside me trying to make itself heard...). Maybe I've been hit by lucky (sic) flukes, but I believe (even knowing that KO has said your luck is msfortune to your opponents) is that any luck scales under hostile dominion to be zero luck for you (just as all positive scales are zero effect as far as I understand).
The good (or bad, which ever way you want to look at it) thing would be (if my belief is true) that Luck scales often go with turmoil scales. An effective Turmoil 3 - Luck 0 isn't all that fun, especially if you have Order 3 in your dominion -> most/all lucky events will be generated in the border provinces under the hostile dominion. Always fun to see a hostile province with your dominion being overrun by Troglodytes or Barbarians when you succeed to push-back the enemy attack and they now have nowhere to retreat
