Who is more valuable

Just a simple question who is more important, the people who build your products and/or provide your services or management. Ask yourself a question should I care if the person who is tightening the bolts, cleaning the parts before painting, doing final inspection is happy and satisfied with their job. Your customer certainly cares those jobs are completed correctly; anything else that goes on inside your company is irrelevant to the customer. Are both equally important to the company. How does your company treat management as compared to production workers? I dare say most companies are fortunate that a majority of production personnel are conscientious workers. In closing, if you consider production and management equal parts of your company are you treating both parts as if they have value.