I don't think either one would matter. There exists a certain subset of drivers who will still speed, pass, race to the front of the line and force their way in, and drive recklessly around construction workers.
(And construction zones - especially lane closures - would work much more smoothly if police actually ticketed people for passing and racing to the front of the line.)
I think, in some states, it's recommended by the officials to occupy both lanes and orderly merge where the lane ends...or so I've read.
My previous point was if the construction projects didn't take so much time, there would be less time for people to get caught driving illegally. Yeah, some people are "that guy" and probably always will be. But some people have a bad day and get careless or need to get somewhere quickly and maybe push it too far. And because the construction zones persist and occupy non-construction space, the odds of getting caught are enhanced.