I agree that Dilbert presents problems without solutions, and yes, Scott Adams is doing the same job that editorial and newpaper cartoonists have done for years-commenting on the state of the world. Pointing out hypocracy, foolishness and the like is the cartoonist role. This function pushes people to begin thinking for themselves. When you point out problems, or tell the truth too bluntly, you run the risk of being run out of town on a rail.
Cartoons show the pain.
It's important to know the source of the pain, and begin to deal with it. In the Boeing company, the managers include Dilbert cartoons in their presentation material. I stay employed in the same way. I draw a lot of pictures of hysterical people, rediculous analogies and complicated concept models designed to elicit questions, reactions and conversation. Talking about our foolishnesses openly, and being willing to laugh at ourselves goes a long way toward building communication bridges between managment and worker, releaving our fears, tensions and panics, as well as contributes towards the building of good systems, processes and customs in our business environment.