It's really not that hard to imagine how game-inspired software could tremendously help learning in every field.
The only problem is very few people are actually sitting down and doing it properly. There are precious little good exemples for the time being but it will come, eventually. One such good exemple is Chaim Gingold's upcoming interactive primer on geology. I also read that Khan's academy is developing a sort of leveling structure on top of its courses and I would not be surprised if that turned out to be tremendously effective.
I'm not arguing that computers will completely replace a teacher anytime soon (especially for good, one on one teaching) - but in many, many less than ideal cases it seems obvious good software would be very useful.