Murray does not argue against the monetary statistics that show a persons income is higher with Bachelor degrees than without it; however, he argues that this is due to public perception. What does a Bachelor in Sociology, Political Science, History, Psychology, Philosophy, or Business Administration show? Nothing. A student could have coasted through by choosing the easiest classes, with the easiest professors, and not have opened a single book. However, if you dont have this piece of paper, you cant even get a decent job interview
The easy way out is certifications. There are already certifications for the IT field that have served as a good baseline for new candidates. A similar approach could be used for almost any field.