As education for sustainable development receives continuing attention, universities provide regular courses, education programs, and individual activities on human rights, diversity, and corporate responsibilities. This study conducts an empirical analysis of a virtuous circle between experience in extracurricular programs as part of humanity education and performance in the labor market based on Education–Career matched data of 15,180 students who graduated from one of the Confucian-based universities between 2008 and 2015. The analysis found that employment is positively affected by not only grades but also extracurricular activities related to humanities, such as completion of an education and practice course on etiquette and social service activities. These findings are significant in verifying that the level of refinement of university students and their participation in social volunteering can have positive effects on employment, thereby leading to the sustainability of a virtuous circle between education and social and economic activities. Therefore, universities should formulate an educational system that integrates expertise, human growth, equality, and human rights, and firms should establish a specific employment manual to identify the invisible characteristics of job seekers to facilitate the sustainability of a virtuous circle between education and social and economic activities.