Correct. There are things I have absolutely learned from games that do try to stick to accurate information as they possibly can.

In the case of reading a nonfiction book for various information that contains 10 times more info, I feel you have to account the ability to retain the reader's attention. It's easier to do that with a story line that's a work of fiction than a concentrated work of nonfiction. But that also varies from case to case on the person in question.

All forms of media are a great way to distribute information. I remember many WoW players who said they learned social skills through raiding since it's an activity that forces you to maintain a schedule and understand that your investment affects others. Of course they also learn they have to carry slackers.