There must be some kind of study about businesses that are loyal to employees and loud about that loyalty. How does that affect their bottom line?

Do customers/clients choose to do business with an ethical company over an unethical one? If not, maybe the bigger problem is that the employees of the world choose to do business with companies that are not good to employees.

If ethical behavior was an important factor in customer's choices I'm sure we'd see less unethical behavior by businesses. However, Walmart, Goldman Sachs, McDonalds, etc all continue to thrive after their unethical behavior is made very public.