Historically, the exploitation has taken many forms of injustice: slavery, war, indentured labor, even non-representative government. Your example of Hannity talking up the great jobs in North Dakota? What will happen to them when the Boom goes away? That they're so happy to be "support their families" in the richest country in human history says it all about capitalism in the US today. In a fair system, people would not have to move to the middle of nowhere to live decently. Not to mention that greenhouse gases cause climate change.
The "free market" seeks to exploit the weak among us, and that's why a peoples' movement is needed -- i.e. Occupy.
No profanes - sacred