The first one was fairly clever in that they had probably 50 years of collective ideas and inspiration to work off of. It's a story that needed to push no boundaries and hold to established tropes, with no expectations because it was a ride: perfect for Disney.
Now when Disney gets their hands on an established franchise full of expectations...
According to wikipedia, Monkey Island was inspired by the Pirates of the Caribbean ride, and Pirates of the Caribbean was rumored to be based on a cancelled script for a Monkey Island movie.