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.
YMMV: The Book of Negroes
Selfish Good: The British are generally portrayed this way. Freeing the slaves in an effort to appear benevolent to the blacks then abandoning them when they are no longer needed.