You are willing to put up with this behavior because you believe that one day your training and experience will lead you to a very high paying job. Lawyers, doctors, accountants, engineers, the professionals, all understand that there is a necessary grind in order to prove your worth.
If you are not cut out for it, there is always work as a desk clerk making above minimum wage working 9-430. Yes, some employers have very relax policies relating to getting work done. But who are the ones producing the highest quality innovative work? The people working hard on a daily basis.