You need to balance it against the amount of disutility from deaths caused by the line going at speed+5 on a road where they were supposed to be going at speed. You need to also add the disutility generated by that line fucking up traffic flow in the nearby area.

Seriously, this stuff is to be determined from top down, not from perspective of individual self-interested drivers with zero context, little responsiblity and no interest of ensuring optimum flow.

Also, the general culture of aggression and disregard for law is something that is not healthy for neither society, nor economy.