When you're watching a movie, it's generally pretty clear who's supposed to be the hero and who's supposed to be the villain.
However, despite the director's best efforts to show the bad guy in a negative light, sometimes a little bit of critical thinking reveals that the bad guy wasn't actually so bad after all.
A recent r/AskReddit thread, "In which movie did the villain actually have a point?, a fun discussion about this very topic took place.