> If commercial real estate charged XX% cuts of all sales from a business, every business would crumble with enough time, and only the big hitters would succeed with great resentment towards their gracious corporate overlords.

That's more or less what happens in real life. If you are having any success with your physical business, you can bet your ass that your landlord will increase rents. They keep a keen eye on this. Sometimes they'll even state that it's not more than fair that they should get more in rent, since your business is doing so well.