Does a company have an ethical duty to find a balance between..

Does a company have an ethical duty to find a balance between..

-Does a company have an ethical duty to find a balance between

remaining profitable and paying all workers a decent living wage? Why or why not?
-Who decides what constitutes a fair wage?
-How would you explain to a board of directors your decision to pay entry-level workers a higher wage than required by law?Please provide reference