South Korea’s triumphant development has catapulted the country’s economy to the eleventh largest in the world. Large family-owned conglomerates, or chaebŏls , such as Samsung, Hyundai, and LG, have become globally preeminent manufacturing brands. Yet Korea’s highly disciplined, technologically competent skilled workers who built these brands have become known only for their successful labor-union militancy, which in recent decades has been criticized as...