Quote Originally Posted by dragonmaster715 View Post
I was also thinking it might be interesting for the story because they are both members of the thieves guild so Katherine would be turning on her own Faction member (And look at how many thieves guild characters we have to get angry at that)
Plus more controversy potentially trying to convince non-guild members (PC's or NPC's) to take a side, since the Dragonborn is a greater asset to the whole world, but petty squabbles can always get in the way.