Ring of Scale only has one use before the VP Revamp. Faction with Gore, Talendor and Sev (in Kunark). If you're good with RoS, they won't kill you, but I believe fighting in Skyfire will give you RoS negative hits anyway. Once they push out the VP Revamp, you need RoS faction (max ally in some cases) to do quests there, doubt if that will be an issue, though.
--Trebla