Again, if you want the people at large to be comfortable with LEOs in general, then weed out the ones that cause us to be suspicious. Just as I don't blame the CHiP who puts a hand on his gun when he approaches me while I am changing a tire on the side of the road, so to you should forgive me for being circumspect of his intent.
I believe this thread is ready to be closed. It is obvious that you are asking for the impossible. Although I believe law enforcement as a profession (and policing it) has improved vastly over the last 30 years, I do not believe there will ever be a day where every corrupt and/or unprofessional LEO will be eliminated from the job.