I have always gotten more than a little upset when someone tries to counter any critical take on any story, media text, or entertainment with "it's only a joke/song/pop music/show/whatever." I am (or maybe used to be) a culture studies scholar, so I know there is no such thing as innocent entertainment.
Still, it's always nice to get confirmation that culture is a more complex than people realize. Enter the shockingly interesting article Inside Monopoly's Secret War Against the Third Reich. If we could only get such unexpected histories out of all our culture, I could maybe get over my anger.