No cops in sight

Today, I was taking a break in the "garden" on the roof of our school and suddenly heard a squeal of brakes and a crash from the street below. Looking down, I discovered that someone driving a small red car hat hit a child riding a bicycle as he was crossing the street. Never mind that he was on the crosswalk, drivers in Korea pay little to no attention to crosswalks, yield signs, stop lights, pedestrians or even other motorists.

Here's the car:
Here's the bicycle:And, amazingly, there were no police, no ambulance, no witnesses, etc. Everyone just went about life as though this were a normal occurance. The woman driver eventually bundled the boy into her car, and drove off (after executing quite a dangerous U-turn into oncoming traffic), presumably towards the nearby hospital.

Any other country, the police would have shown up, made inquiries, questioned the driver, summoned paramedics, etc. In China, a crowd of onlookers would have surrounded her car until police arrived, then give the police their version of events and the crowd would decide the penalty then and there.

Why on earth should I actually expect the Korean police to do their job????