Maybe the cop even gets there first. Maybe the cop saves your life.
If a cop happens to show up and saves your life, good. But what does it matter what job your rescuer holds? Wouldn't you be just as grateful if you were rescued by a pimp or an artist? Would you forever worship all artists if one showed up and saved you?
So, why do some people act as though cops are special (no, not in "that" way) because they have the radios that make them aware of crisis situations as they happen?
If I happen upon an emergency scene I may or may not be of help, but I'm also highly unlikely to shoot the person in need due to them being unable to comply with arbitrary orders I bark at them.
Don't fall into the trap of worshiping cops just because some of them happen to show up at the scene of a crisis, and sometimes do the right thing at that moment. Even the cop training can't totally extinguish the ability to do the right thing sometimes.
Related: If a thug lends a hand