In the first case, your so-called personal integrity could get someone killed. Those dimmed lights don't cause you any loss of any civil rights but they do help others to spot you a little earlier. Now, you might think that it doesn't matter but it does. I drive around 30,000 km a year, Lit, and I'm quite used to people thinking it's cool to drive without them but it's really not. I don't worry a lot for my own sake but I know for a fact that an eyesight that is deemed good enough for a license can be bad enough for an accident to happen, IF that person isn't allowed those extra seconds.
I know; the docs could pull their licenses, but In that case you'd be robbing them of their legal right to drive a car, in which case it would be about personal integrity.
In the latter case, it's not about the state at all. I know for a fact that seatbelts help save lives, including, sometimes, those of people who accept this but encounter a car whose driver ignores them. Have you any idea of how much money Volvo puts into researching this?
I know; it's your body, but could you please get rid of the body in a way that doesn't have to include others?