Is it legal to work some one any amount of hours you want because they are on a salary?

If you are salaried exempt, you are paid for the job you do, not the hours that it takes you to do the job. Yes, most exempt employees work over 45 hours a week (9 hours a day) = that's not very much and certainly not enough to be belly-aching about.

When you are on salary you do work crazy hours. You normally don't get paid overtime either. And it is legal. And the company doesn't make people quit. They quit because they don't like their job or for whatever reason. Both are legal.

No duh, you can thank Bush I &II for taking all the teeth out of employment laws. The worker might as well be back in the 19th century. The rest of the world, where all the masses live, are still putting women and children in filthy, disease ridden sweatshops and working them to death without anyone even noticing. How do you like big business?