Well, I was replying to your why we seek change question. Change being both good and bad.
Although I'm not really sure what your question is now haha. Are you referring to why people like the setting proposed by Dark angel, with the US becoming a third world nation, etc? Or why poor countries remain poor? or..?
I don't think we ever /want/ anything bad, but we can't predict what will happen. When we make our decisions, we always expect that it'll be the best decision of all the decisions available. Sometimes the consequences are just overlooked or never really come to mind. '
As for what's appealing about Dark Angel's post-apocalyptic setting - it's seeing that in spite of tragedy, mankind continues to flourish. It's the fact that when faced with hardship, we can still find a way to survive. But people like Dark Angel for more than that, of course. There's the drama, the sci fi, the action, etc.
As for countries remaining poor - we're actually discussing this in my comparative politics course....and there are too many factors that contribute to this, whether it be self-interest of leaders, resulting in corruption, limited resources, internal conflicts among ethnic groups, etc. Even the solutions have their disadvantages, and no one has yet to find a "perfect" solution to help these countries. I can't believe I'm just reciting what I've 'learned'.