The answer often is "what is good for employees is good for the business". This is a known recipee for success that rarely gets implemented because of greed and shortsightedness

It's also true that "what is good for the business is good for employees". So it's a two-way street that needs to be walked by honest employees and empoyers. Not possible in toxic cultures. So it's important to keep the toxic employees and managers (even shareholders!) out. This is what hiring should mostly focus on (not sure on how to keep toxic shareholders out, and businesses often rot from their heads down because of this)