What you describe would be pretty cool, but it's also complex and kind of a pain to implement. Larian is willing to go into permutation madness as we've seen with the box, but I think the key with the box was that they didn't really see it coming initially. They made a decision about the importance of the box and got themselves written into a bit of a corner. With this, they can see that level of compexity coming. What you describe would necessitate pretty dramatic divergences that I don't think most studios would be willing to commit to unless it was a specific central part of the game. I don't think it's a societal thing at all, if it were then I doubt Larian would be approaching the romance and sex stuff the way they are, for one thing.
