EPCOT doesn't exist; not the way Walt wanted it. He wanted a community you lived in. Celebration is closer to Walt's dream of EPCOT.
You can't educate people if they don't come and stay for a bit. Characters, alcohol, live entertainment and Kim Possible get people to the WS pavillions and keep them there long enough to possibly learn something.
As someone who spends a lot of her time with the characters in World Showcase, I can tell you that MOST guests have no clue why a character is in a certain country. As cast members, one of our duties is to educate them in a fun way. Guest: "Who are we in line for?" Me: "Well, we are in *name a country*. What Disney character's story fits with this country?" Some figure it out, some need help and then get that happy suprise face when the light turns on and they learned something.
Families are the mainstay of WDW. Everything has to be geared to them. So many families just walk around the lake and never ever step foot inside the countries attractions to check it out. But now, let's use Germany as an example. The kids are playing Kim Possible and moving around the pavillion checking things out and learning things while playing. Mom and Dad can be enjoying beer or wine while following the kids around. Also, Dad can get in the nice long line for Snow White with his beer and wait with the kids while mom gets to shop or explore the pavillion.
As for the princesses in Norway, and speaking of plaques, there is a plaque outside the Norway restaruant that explain why the princesses are there. It says something like.....Her Royal Highness, The Queen of Norway, invites you to a meal with the storybook princesses.
The number of guests that know as much about Disney as we all do on this board is miniscule. Most are just looking for a fun time, not purity.