You do raise the other side of the issue about the left lane. I hate people who are doing the limit in the left lane because it is a passing lane. At the same time if you are doing more than the speed limit (5-10 over) you still get people riding your ass that are not using the left lane for passing either, they just want to stay in the left lane and speed even faster. Bottom line is they are not using the left lane the way it’s supposed to be - just for passing. They stay in there and think because they’re in the left lane they can speed 15-20 miles over and not somehow get or deserve a ticket.
The only time I wind up in the left lane now is when I have to take a turn or an exit on the left side.
I was stopped by a state trooper for passing him (he was doing 55) going a little bit faster. He told me passing over the speed limit is against the law.