Lawyers are scumbags too, but getting through law school is a very mentally challenging thing.
Post office workers/DMV employee types can be annoying, but they are relatively harmless in the grand scheme of things.
Journalists are just mediocre for the most part. You get paid to write neatly and shape public opinion. I do respect the ones that actually conduct investigative journalism and do their best to tell the truth, but that is a rare breed in this day and age. Most journalists are completely culturally isolated from the area that surrounds them. You can't tell me that the Birmingham News actually voices the opinions of most Alabama citizens. In fact I would argue that most of the people who work for the Birmingham News probably view the state of Alabama as an evil entity that should be completely culturally re-engineered.