You have apparently worked for the wrong employers. I've had bad employers, but I've also had good ones. I've been with my current company of several years now and every year they send out an anonymous employee survey rating the company as whole, among those ratings, the opinions the employees have of the executive management. Every year the executives and our CEO get over an 80% approval rating by the employees.
I've also found that people who constantly gripe about employers being unfair, evil, conniving, etc. also tend to be people who aren't very good at their job.