I don't understand why anyone would finish roads like that, but apparently it's cheaper or something. Nevermind what it does to cars, have you tried riding a motorcycle on that crap?
With the 406, I've quietly resigned myself to the mindset that any non-major scratches or dents are to be classified as "patina" and pretty much left alone. I wash it by hand and polish+wax regularly, but everyone and everything suffers wear and tear over their lifetimes, and cars are no exception.
That said, it still boils my blood whenever someone speeds down a chip-sealed road, spraying rocks everywhere, or if someone causes damage through negligence or malice.