Time is a cost though. You're looking only at monetary cost.
Exactly. The janitor has every right to sit in gridlock beside the CEO. If either doesn't like it they can adjust things but realistically the CEO's got the most ability and incentive to do so.
These artificial price distortions wind up most benefiting the people who were in the best position to alter their behavior.
This is precisely the reasoning I bring up. In essence traffic congestion is an externality not unlike pollution. What society now pays in the form of a financial levy it formerly paid in the form of a wasted time. We've made explicit a cost that was already there, and by doing so the system can respond to it and behave more intelligently.