I was reminded this morning of something else that has bugged me, in terms of driving right: left hand exits and tolls. A (very) few times I've attempted to drive either the limit or a bit under, to see what the car can do for mpg. Usually I like to get into the lane I need to be in, ahead of time; but that gets tricky if it's a left hand exit. Do you get in a quarter-mile ahead of time, which feels comfortable, or do you wait until later and risk not getting in? 'tis a case where driving faster, or at least driving with traffic becomes required.
Tolls, I found those annoying. Right two lanes would be cash, left lanes were EZ-Pass. Of course I have EZ-Pass, so now I need to move over a few lanes, again while attempting to do the limit (or at least coasting into the plaza, rather than hitting the brakes). No love there either. [At least it's going away now, the one I have to drive through is going to high speed.]
As to passing on the right, the worst left lane bandits I've seen are on 93(?) going down to the Cape, where I've seen several times people doing 10 under in the left lane, on a two or three lane, where 90% of the traffic is doing 10 over. Ouch. Next up is where two highways merge, three lanes on one and two from another, becoming a four lane highway. With the obligatory left-lane drop a few hundred yards later to make it three lanes. [I293 in Hooksett.]