To be perfectly honest, there are a few companies that exist because the build and sell something fairly remarkable as a product or a service, but there are literally millions of companies that survive off of the inefficiencies in existing markets. Many/most businesses operate off of a form of arbitrage, not unique product creation. For example, look at retail, it exists on the arbitrage opportunity of buying things…
Part of why Walmart is putting so many smaller retailers out of business is because they're experts at optimizing a huge part of the vertical stack of retail, distribution, and logistics operations.