One of the things that I have always found wanting in the game mechanics of BR, ever since I first read the books in the 2nd edition campaign setting, was that the mechanics seem to allow things that the narrative clearly prohibits. I think the most obvious example to this is in regard to elven realms. While the Sielwode, Coullabhie, Innishiere and Lluabraight are described as blatantly anthropophobic, often violently so, there is nothing really in game mechanics to prevent (or even seriously hamper) a human with a large amount of regency in his reserve from establishing law, guild and even temple holdings in those realms. Establishing a human law holding in Innishiere seems easier, in fact, than establishing such a holding in Ghoere.
Do you think this is not a problem? Do you think this can be ignored? Do you think the DM should intevene in such cases, thus "breaking" the uniformity of the mechanics? If so, how?