I also think that in many ways SHARK (where is he these days?) is right in that we ought to challenge the basic premise of the level distribution for D&D, and make the range far larger, with average levels for NPCs above the level 1 glut. That's just a hangover from the early days of the game, when characters only earned experience for killing things or finding gold, the sorts of activities that most NPCs don't get to do. If we build our world so there are powerful people and organisations for them to vie with, and work alongside, many of the demands for extra-planar travel and planar weirdness fall away.