However, when implemented with intent, the results are palpable. A study by the American Society for Quality (ASQ) suggests that companies with deep-rooted ISO 9001 implementation see reduced waste, higher employee engagement, and a significant decrease in liability claims. It acts as a common language. When a supplier in Vietnam tells a buyer in Detroit that they are ISO 9001 certified, they aren't just saying "we are good." They are saying, "we have a documented, auditable system that you can trust without flying over here to check."

Before the standard’s widespread adoption, quality was subjective. A factory produced goods, and if the manager was having a good day, the products were good. If a key technician was on vacation, quality dipped. This inconsistency was the enemy of scale.