Call center Life

On some articles say's working on call center is starting of stressfull life. Is it because you are working on graveyard shifts, not to mentioned the pressure of your boss and preformance that need to maintain for high apparaisal and for promotion. They say that when you work on a call center it means that your wealthy, because of high salary? Thus salary really counts when people choosing a job. For me, what matters most is, as long as you love your job, you think that its develops your skills and personality, working in any chossen field would be easy.