Brandon Sanderson
Chapter Eighteen - Part Two
Shan was a later addition to the book. In the original draft of the novel, I did mention her in this chapter, but we didn't see her–and Lord Liese didn't mention her. As I wrote the first draft, however, I began to realize that I needed more tension and political wrangling in the Vin ball scenes. So, I expanded Shan and made her a larger character. Then, during the first rewrite, I added her in to this scene, along with some others.
The purpose of Shan, therefore, is to show that some of the nobility ARE the way Kelsier says. The thing is, most of what we get about the nobility come from him, and he has a very skewed perspective. Our only real opportunity to interact with them is at the balls, and so I knew I needed to cram a variety of personalities into this scene, so that people could have a chance to experience the range of the nobility.