NPC Spawn Issue: Banker and merchants look like guards

[Culainn]

I was just down in the Neriak Underground doing a little banking when I noticed that the merchants Niz L`Crit and Dunred M`Trik in The Refined Palate, along with the banker, Antian F`lok, were wearing guard armor when they usually look like normal dark elves (from my recollection).

Maybe there is a reasonable explanation for this that I'm unaware of, but I'm posting here in the off chance that there isn't.