There are so many variations of what "cultured" and "smart" would look like, sound like, feel like, maybe even taste and smell like, it would boggle the senses if everyone on the planet tried to be in or out of those categories. Maybe the people who deem themselves worthy to judge, should go and take a gander at the varies dictionaries out here. There are almost about as many definitions as there are books on the shelf. And there are a lot of books on the shelf!