Seriously? It's from people not wanting to be arrested and go to jail. If they get away, perfect. If they don't, well, they were going to jail anyways. Now they have a cool story to tell while in jail. These are not people getting pulled over because they rolled a stop sign. These are people doing dirt, know it, and are willing to try something to avoid getting caught. It's really not complicated
Although if you watched "Last Week Tonight" recently (S12 E28, 2025-11-02), Mr Oliver's long segment is about police chases and IIRC he covered more than a couple of cases where people were, in fact, being pulled over / chased for trivial matters which then lead to crashes, deaths, etc.
In a city with large population, it only takes a few people willing to commit crimes to make the news.
