The answer isn't that hard
When most of a country's population has enough income for food, clothing and housing and is able to afford luxuries beyond those necessities, why complain? Until hunger becomes the norm, I doubt you will see any realistic opposition to the corporate state that the US has become. Of course it is possible to be better. It's just that the definition of "better" isn't affected by the minority who are not well fed, adequetly clothed and living in decent housing.
The best scale for an experimental design is ten millimeters to the centimeter.