Suppose you drive an older, but not classic, automobile. It's got some dents and dings but is in fantastic running shape for a vehicle of its age.
Now let's say that you see a late model, high dollar, luxury car about to commit a blatant traffic violation, running a yield sign, for instance. If you were to brake, they will pass on and no one would be the wiser. If you do not brake they will side swipe you and, legally speaking, it will be entirely their fault. There is little risk of injury as the speeds involved are quite low.
So, given that any serious damage to your car will lead an insurance company to total it, do you slow down and let them sail on by or do you take the opportunity to make a rich asshole that can't be bothered to read street signs buy you a new car?
Just a hypothetical question.