Why would pay keep up with productivity gains when the productivity of the labor purchased by a wage hasnt kept up with productivity gains. Businesses run on a

Why would pay keep up with productivity gains when the productivity of the labor purchased by a wage hasnt kept up with productivity gains. Businesses run on actual formulas. So if a mcdonald resturant doesn't make the the 100x% growth because the wages didn't create 100x% growth in each store revenue and wages went up 100x% how does it make sense to run most any small business in america