In a healthy product-driven business environment, value is created in the manufacturing process. In fact, the entire value chain lives within the manufacturing (and supply chain) process. Case in point, if you take the of raw materials, conversion (labor utilities, maintenance, etc.), and overhead and total that all up for one unit; then compare that value to the market price for one unit, the difference is the amount of value created. Now some of that value is real and some of it is perceived which is created by dynamics in the market such as scarcity and other factors.