A dominant assumption of Oprah, her guests and studio audience, and of the ways in which the show is structured, seems to be that choices are freely made and can be altered at will and by “working on oneself.”
I wonder if this is true because of the at home audience of the show. I would assume that most viewers are women who have the ability to stay home during the day and watch a daytime television show. This indicates that they likely have the resources to "work on themselves" and make different choices and try new things. The audience is likely not, say, a single, uneducated mother who is working to support her children at one of the jobs that she can get without a degree.