Exactly @wakeupsheeps! Why would the sous chef go to school (student debt or money out of pocket) to learn the skills to make only $1 more per hour? Sous chefs would decline in society or the restaurant owner has to pay the sous chef more to hire his/her talent. Again, the result is more costs passed onto the customers coming into to dine which contributes to the points I was making.
It is a great question.
I guess the sous chef is going to be doing the dishes as well as cook due to the fact that the restaurant can't afford a dishwasher at that rate!