Brandon Sanderson
Elend reveals that he's joined the Church of the Survivor
Unfortunately, this entire chapter is a big mallet driving the wedge down between Vin and Elend. The next chapters are why I had to make sure I established their relationship earlier in the book, so that readers would hope for them to stay together as the novel progressed. However, I suspect that at least a few readers are pulling for the Vin/Zane thing to work out.
Either way, it's better–narratively, and character-wise–to have Vin figure out Elend's plan on her own. It gives her the chance to show how she's grown. She sees things like a politician. Though she's hard on herself, she knows a lot more about these things–and is a better match for Elend–than she gives herself credit.
I actually think this is a clever, clever move. Elend has done a lot of work for the skaa, but he's never really worked to make himself seem like one of them. This establishes him as on their side, solidly–but also gives him a kinship with them. He doesn't worship the Lord Ruler. He worships their god. That gives him a lot of credibility with them.