People join the police force for all manner of reasons. Some, I think, really do join to serve the community. There are plenty of good guys and gals in there. They realize the importance of the job. Others see it as an opportunity to perhaps 'lord it over' others. They desire power. And still - and I suspect it's a tiny minority - to take advantage of opportunities to make some dishonest money. But I point out, very few would fall into that category today, compared with, say, fifty years ago.
A big problem for police, I think, is they are obliged to deal with many people who do not represent your 'typical' citizen. Rather, they're drawn into dealing with people who are - I'll be kind - immature. These are our juvenile deliquents, our petty criminals, those who are not honest people compared with the majority. In other words, police are continually exposed to those elements of society which cause society's troubles and woes. This creates cynicism, lack of trust. They so often see people at their worst and they begin to think that this is what the whole of society is like.
We see a lot of 'cop' television and films, but fighting criminals probably represents about 10% of what police actually do. The other 90% is involved in keeping society running smoothy: traffic control and accidents, search and rescue, serving warrants, sorting out domestic arguments, going to court- all manner of things.
Do your local police have your best interest in mind? Do you have your bosses best interest in mind when you go to work?