The criminals who do this like doing this and get protection from them.
While they will certainly side with the "rulers" over anyone else when there is a conflict on the day to day the are also the foot soldiers of you the hypothetical average HNer reading this comment.
The people with real power DGAF about the sort of petty "annoyance or minor risk to the public" behavior that the police spend the bulk of their time enforcing.
You think Musk is worried about fentanyl in his weed?
You think Gates cares if you are drunk and disorderly alcohol in public?
You think the Kochs give a crap about some kid doing a burnout at a stop light?
You think Murdoch cares whether some restaurant is staying open in defiance of a health department?
Of course not. They're above that kind of stuff. Ditto for any list of powerful politicians you feel like coming up with.
When the police initiate an interaction they are almost always doing it to enforcing the laws that you the average "well enough paid to give a crap about issues not related to your economic survival in the short/medium term" American want them to enforce (revenue policing notwithstanding).
Look at who voted for Eric Adams and Curtis Sliwa in New York City, who both ran on a pro-police platform.
Those votes were to reduce public policing, in favor of private policing. That is nothing new, and it is in no way a reduction of police. This was simply members of the ruling class voting to drop the facade altogether and abandon any remaining semblance of a police that serves the public. Again, nothing new. The ruling class does have to maintain its own legitimacy. That's all you're describing.
The police are the foot soldiers of the ruling class. Insofar as the police may serve certain interests of working people, the aggregate sum of the police's influence on our society serves to protect the interests of the rich, which are usually at odds with the interests of working people.