How does each scale of product work serve the business?

Managing product teams, mostly in B2C, I understand clearly that my team exists to keep the product user-centered. The purpose behind that function, though, is pragmatic. Satisfied users are how we serve the growth of the business, and every scale of work we touch has to move profit somewhere, by increasing revenue or cutting cost.

Below is how the three scales map to business value (I use B2C as the example since most of my work lives there).