Look playing RPGs isn't just an escapist power fantasy. The fantasy is about having clear and well-defined problems which can be addressed through straightforward if challenging tasks. It's reassuring to imagine that there are some big problems which can be solved by a small group of dedicated individuals. And then there's the ultimate fantasy: forget casting magical spells; RPG characters get to sleep eight hours in a night and wake up feeling refreshed.
@tomlowenthal in a way it's a way to teach and train problem solving. get problems, brainstorm what to do, whoops random interference (dice rolls), results.