What few have done is to write with such beautiful footnotes or to weave the background information into part of two narratives at the same time.
An example of the amazing footnotes is this one:
21. Even nominally evil player characters (see §3.0) often cooperate; they do their evil only to the non-player characters, who aren’t in a position to resent them when the game is over. As Skip Williams, who for many years wrote the “Sage Advice” column in Dragon, a D&D magazine, puts it, “evil characters tend not to act like evil people in real life. It’s more of a hat you wear.” ↩
While roleplaying and fantasy in general has raised some people's suspicions because of the deliberate deviations from reality, the social effect of such a phenomenon is likely to be a bit different than fears that a person will be incapable of relating to the normal world or sucked into witchcraft. Perhaps the most articulate of the critics of Fantasy roleplaying is hosted by none other than Chick Tracts (of the amazingly misinformed religious pamphlets) fame.
The concerns expressed are that the roleplaying accustoms players to concepts of witchcraft and dysfunctional behaviors.
For example, you can have a "lawful evil" character. A handbook states that: "A lawful evil villain methodically takes what he wants within the limits of his code of conduct without regard to whom it hurts. He cares about tradition, loyalty and order, but not about freedom, dignity or life."7 Talk about a mish-mash of moral ambiguity. Our young people are having enough trouble getting their values straight without being immersed in this sort of material!
One of the ways Dungeons and Dragons has changed society is by popularizing the lawful vs. chaotic aspects of moral behavior. I argue that with fantasy, we are now in a world where social groups playing games combine to create emergent properties that can imagine worlds under slightly different rules allowing us to predict what effect certain changes will have. I predict that society is now prepared for the effects of no FTL communication once humanity has a colonized new space systems just as well as it is for having such communication speed. People fantasizing and gradually writing new works to meet new standards of immersion have addressed concepts in a way a strict adherence to reality cannot.