Think of all the many horror stories you've read about factory work and other high pressure low pay environments.
Now those same companies are supposed to magically grow a heart, and put their staff's wellbeing ahead of profit? When there's almost zero repercussion for not doing so?
I think not.
How about spinning things around, for once? "If you can't make a profit without treating people like dirt, you don't deserve to be in business at all."
Simple and rational.