You referenced "not all cops are bad". Would you be so kind as to give an example of, say three or four, that aren't?
As far as the poeleese being such "heroes", that occupation doesn't even fall into the top thirty of "job related deaths". They don't even hit the top fifty of "injured on the job". Hayull, number six on the "job related deaths" list are garbage collectors. So, rather than saying, "Thank you for your service" to a poeleese worker ... Best to say that to your trash collector.