I recommend this EconDuel between Tyler Cowen and Alex Tabarrok, with the latter channeling Bryan Caplan, on whether education is content or signaling.
Tyler argues that students pick up valuable intangible forms of knowledge in college. One might term this cultural learning.
When I showed the debate to my high school students, they were somewhat put off by Tyler saying that students learn to “submit to authority.” I think that a better formulation would be to say that students learn to please authority in ambiguous situations. That is, a skilled worker in today’s economy needs to meet expectations in a setting where instructions are not precise. Your boss does not want to spend time telling you exactly how to do your job. Instead, the boss wants to set some general expectations and have you figure out how best to meet or exceed those expectations. In college, writing a paper or trying to prepare for a test requires similar skills–the ability to anticipate and satisfy what the professor is expecting without being given a precise set of step-by-step instructions.
When I gave job interviews, the crucial point in the interview was when I said, “Tell me what questions you have.” I took the view that someone who was going to do a good job would have the ability to ask relevant, probing questions. Someone who lacked that ability would be too passive and create too many opportunities for communication failures between me and the employee.
In theory, a better educated person would do better in my interview. That person would have a better sense of the right questions to ask in order to be successful as an employee.
On the other hand, the cultural learning aspect of college education might be nothing but an Eliza Doolittle effect. Because you are able to speak with the proper intonation and express the views of a well-educated individual, you ingratiate yourself with people who can hire you into or connect you with well-paying jobs. But someone with more lower-class conversation patterns might actually be as good or better at doing the work.