Wouldn't this put Dwilight in a unique disadvantage because of the character limitations?
No. Think about it this way, more nobles = more troops = greater mass. This is neglecting the issue that obviously peasants also contribute to the overall mass, so in some circumstances rogues are helping you by eating them.
Kill those rogues as efficiently as possible, while allowing them to decimate the peasant population, preferably in someone else's realm mind you.
