That's what I like about where I live in Canada. the Provence of Manitoba owns the auto insurance system (i.e. only one insurance company for basic coverage-theirs) so they run it on a break even basis.

There is an independent review board that looks at any proposed rate changes and can order modifications. About 5 years ago they ruled the insurance company made too much money so the review board ordered them to refund more then was proposed to over 750,000 policy holders. If it had been a private company the shareholders would have done good that year.