consider the following:

• Klingon death metal
• Vulcan pop punk
• non-Klingons being inspired by Klingon stories of honor and glory
• non-Vulcans choosing to follow the teachings of Surak
• rebellious Ferengi forming little communist collectives
• the Ferengi feminist revolution
• non-Bajorans believing in the Prophets
• Humans forming new religions out among the stars
• highly diverse scientific research conferences on a different planet every year
• non-Humans being fascinated by Earth history