These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Fair for Its Day: Early in King Solomon's Mines, Quatermain explains that he doesn't use the N-word because he's met more gentlemen in Africa than England, and more people deserving of the N-word in England than Africa.
On the other hand, the book also features an interracial romance between Captain Good and a native woman, which was quite cutting edge for its day. However the black woman dies in a heroic sacrifice. Afterwards Quatermain reflects this was for the best because Good couldn't spend the rest of his life in Africa, and the relationship would cause a scandal in England. Okay, he has a point — the romance is doomed. But that doesn't mean her death is the best solution.