First.. whoever is writing your story should read this review of a recent similar product the short version is people want their characters to be likable.
I am not very far into the demo and one character just mentioned the word "racism". The empire's history is 1000 years of slavery and racism.. or something like that. You do not need to ever use that word. Feel free to have moral lessons.. just don't be so explicit about it. You can say (or better yet, SHOW, that dwarves or elves or whoever were (or still are) treated poorly.. as second class citizens and so on.. without throwing around that word. Using the word itself is cheaping out.
Games, and especially RPGs, have been teaching lessons about racism for a very long time. But be smart about it.