could actually be the lack of free information flow and human interaction with the outside world. It's the free flow of ideas that help people fight againt oppression, not money (it helps, but not absolutely needed). Maybe it's kind of a corrolary to the "sunshine is the best disinfectant" saying about politics.
If you have followed Jason Jones reports from Iran for the Daily show, he sort of highlights how plugged in to the west they are. That is why I am pretty encouraged about Iran, they are still informed and connected. The last thing we want is for them to get cut off like North Korea is. I don't think those poor NK folks have any idea how screwed they are.