I agree with your sentiment, however, there are many cases where the federal government has intervened to regulate employer/employee relationships at great expense to corporations. Why this one particular issue has not seen intervention is still up for debate and not answered in this article.

Don’t expect the corporate owned media to ever do any actual investigative work on why workers in the US have been getting shafted for the past 50+ years. It’s just a mouthpiece for corporate interests and government propaganda.