I tell you what...I don't agree with this at all.
I'm a professional (by education) but I was raised in a blue collar suburb...and I currently live in a cop/fireman neighborhood. They aren't perfect...far from it...and, as I've mentioned in the past, I think they should have a height requirement (to weed out "little man's syndrome"), but...
I know lots of cops, even in a tough city like Cleveland, who CHOSE the job...who prefer it to certain other jobs (maybe even higher on the food chain) that are more mundane (boring, even). It's a very, very interesting job, and frequently a very rewarding job and it attracts SOME great people and SOME who fit your very low impressions, but, overall, I work on the other side of cops in the courtroom but admire MOST of them.
As someone else mentioned, your comment suggests you don't know cops. It sounds cartoonish (your comments)...