This movie is an allegory/satire for the era of the Reagan administration and rise of the "yuppie." Growing up under an oppressive alt-republican father made the understanding of this term semi-difficult, and of course it has an offensive connotation to it because it identifies a society of privileged people. Now, the idea of who is and who isn't privileged is relative to what economic class you identify with but what I think is different about yuppies is that they socially and economically control everyone else. What I mean by this is that the yuppies preach an illusion to the middle class that they too can be successful and privileged one day if they work hard enough. The middle class usually eats this up because it sounds just like religion where they are promised a ticket to some sort of paradise in the end so long as the work hard at achieving something. In reality, these yuppies are exploiting our capitalist economy but don't get too defensive about that idea because there are yuppies who exploit socialist and communist economies as well. It's human nature for people to exploit every opportunity they have for success but when it gets out of control, you have yuppies. So how do you deal with yuppies? - You get Roddy Piper!
The film subtly explores the different circumstances we face in dealing with oppressive forces. It shows us how corrupt law enforcement are the driving force behind a lot adversity we face and while not every police officer/soldier is corrupt, their actions and motives are still influenced directly by corrupt superiors/politicians. The film also shows us how there are oppressive forces surrounding us in the media which tell us exactly how to feel and lives our lives. We also see through an extensive fight sequence how difficult it is to motivate others around us to make changes rather than be complacent. John Carpenter goes as far in this film as to explain how control is usually maintained by employing quick action, something that republicans have an advantage of whereas Democrats usually like to wait and conceive the best possible plan to execute by which time it's too late. Of course, surveillance is another aspect of social control that is explored as well.