In CA, I don't know -- it's an expensive place to live. The average (over the entire country) salary of a patrol officer is what, $30k??? (read: a whole LOT less than 200k, but a cop is the very definition of "high maintenance".)
What the actual fuck. No, really, what? You can access Slashdot, but you can't access Google? In fact the average is $51,218. That's quite good money. Most cops will never even discharge their weapon, or have their life seriously threatened throughout the course of their employment. The ones at serious risk of one or both of these things are paid more than the baseline.
Now, let's move on to bad cops, good cops. A cop who lets a cop get away with bad behavior is a bad cop. By this definition there are almost no good cops. The blue shield is real. I think they're overpaid, given that so many cops are not actually doing their jobs, and therefore exist primarily to harass and shake down. Let me know when the massive endemic corruption in policing is over and I'll be more sympathetic to your horribly uneducated and misguided views, some of which would have been corrected using google by an intelligent person.