You left out "Do you purposely drive over the speed limit."
I did not respond because "good" is subjective. I'll admit to making some mistakes on the road, but after more than 50 years of driving I've been involved in only one minor non-reportable accident. I would classify myself as "safer than most."
I find it interesting that people think it's OK to ignore speed laws, but all other traffic signs are valid.
This is going to really piss off some of the so-called "good" drivers, but I can find absolutely no valid excuse for exceeding the speed limit, even in a passing lane. The only vehicles authorized to do so are emergency vehicles with the appropriate lights and sirens. That's it. All other explanations are just excuses emanating from people who are impatient and/or failed to budget sufficient travel time. It should be acceptable to pass in the passing lane at the speed limit unless that would be to block an emergency vehicle.
Those who speed are also those most likely to not allow sufficient following distance, i.e., they tailgate. In fact I would wager that speeds in a lot of areas should at times stay well below limits in order to sustain safe following distances.
The fact that most people exceed speed limits does not make it the right thing to do. All people commit "sins" against their fellow man. Does that make it right?