I think we are protecting bad behavior of drivers by allowing them to dictate the road.
True, but that's also not our roles. Police are there for that. We can't pull someone for speeding and punish them. We can only REALLY piss them off. Not a wise move.
But it's not even that. It's just courtesy and a false feeling of entitlement. I don't come to your house and say "you know, that downloading is wrong!" Or come to your house and check all your cable wires to make sure you have only the correct number of outlets. I don't scan you as you get into your car to make sure you have your seatbelt on. I don't follow you in the supermarket to make sure you don't sample a grape before you pay for them.
So why do some people, when they get behind the wheel of a 4,000 pound steel and glass machine, decide they get to now police my driving? I'm not asking anything that I'm not willing to do myself. If you come up behind me and want me to move over, I PROMISE you I will do that*. If the lane choice matters SO much to me, then after the 12 seconds it takes you to go past me, I can move back to where I was.
I have to live among 319,999,999 other people, and I can't control any of them, only me. So rather than flex fake muscles by trying to exert my will by proxy on someone else by planting my car in the left lane and making everyone drive around me, I let you make your choices (and deal with the consequences). I only ask that you let me do the same.
* Unlike most people that even agree with me on the rest, I will even SPEED UP to get out of your way faster. I also try to make sure that I know what I'm going to order from McDonald's before I get to the register, and if I don't I will make reasonable efforts to step aside.