Quoted from Trekkie1978:

Stern and Distributors are private companies. The only people who should be concerned with their bottom line are the owners. Outside of that, it is nobody's business. If they were a public company, then the only people who should be concerned are the shareholders.
I deal with it all the time in my company. I buy my product for $45/ton, but I sell it for $85/ton. Am I making $40/ton? Nope. I have payroll, insurance, taxes, office expenses, repairs, truck expenses, loans, interest, etc....and on top of all of that, I still need to make a profit...otherwise, there is no point in me working 70+ hours a week.