Using government force against people who have done you no harm, but whose behavior you disapprove of, is a slippery slope. You undoubtedly do many things that irritate the people around you. You won’t be happy when they send government goons to punish your behavior.
Proving actual damages is a requirement of civil lawsuits. No damages, no case. The bar should not be any lower in cases of government vs citizen.
Sorry. That sort of driving behavior has more in common with brandishing a firearm or threatening someone (i.e. Assault). Don’t have to show damage in those cases to put them behind bars.
One more thing.
I have a daughter who is massively scarred from an @$$hole hitting my car. The gas tank exploded (guess what? that really happens sometimes!).
The person in question had a previous DUI - he was not supposed to be able to drive anywhere except to and from work (not the case). He was texting. He tried to leave the scene.
Personally, I think there ought to be a death penalty for certain types of reckless driving. You have a previous DUI or lost your license, and you kill you someone in a vehicular homicide are DUI again? The cop should put a bullet in your head right at the scene. Same thing for “wrong-way” drivers. Cop pops them right at the scene. No mercy, no pity, no second chances.