Burger flippers may only make 100K per employee - but then that is a minimum wage job that pulls down 20K a year, plus fees/expenses/overhead etc. no wonder they can't make it at 15 dollars an hour.
If you think your salary is the most important part of the equation - you are mistaken, COGS, buildings, benefits are a significant cost there. 100K per employee means 50K in profit per employee (If you have a 50% gross margin)... Think about that.