I think cars nowadays are so effortless at handling the huge forces involved in driving that drivers always think in financial terms. I remember once being a passenger in a car when it was hit on the side at the rear and spun round by a moron. As soon as we stopped spinning, the fear left us and we were instantly thinking of the money it'd cost to fix the car, how long it'd be off the road and whether we'd need to get a taxi home. People in cars forget that with a cyclist, the fear is always for your own body and/or life. Most cyclists aren't going to have a sufficiently huge repair job or bill to be off the road for very long and it's relatively common to have a spare bike. So you get a situation in which a car-driver whose come very close to killing someone only thinks of the hassle of going to a garage to fix a small scratch in their paintwork. They have to be reminded at all times what they're travelling around in.