Not having good design controls can definitely cause product failures as mentioned above. If design controls are not used properly, users of products may use it and cause great harm to themselves or to their assets. However, another degree of this that is not always talked about is not sufficiently meeting the performance standards of customers. If proper design controls are not used, a product may not perform in the way that a customer needs, failing to meet the expectaions that were set out to be met in the first place. This hurts the reputaion of the company as they are now treated as unreliable. In addition, the company would be hurt in profits as that would cause customers to go to competitors that offer similar products with better performance.