People with a solid STEM background may not get a job in their field, but they learn skills that are generally useful outside of their specialty. I was working with a recent MIT graduate who had a Masters in Engine Design. While his job had little to do with that, it did make use of his significant statistics training and paid a significant salary.

By comparison my coworker with a Philosophy degree had gained what he described as zero useful skills. He was also making good money, but he described his degree as little more useful than a check box on the application.