A bike courier or lawyer racing to the court house benefits far more from the roads then others but doesn't pay more. Common carrier regulations were widespread in moving atoms.
Toll roads charge you for travelling over them. They don't charge the business you're travelling to based on how much value you have to them as a customer.
not really a faster road as anyone stuck in an expresslane behind a prius will tell you, but a less congested road free of peasants. Not really sure how this analogy syncs up but just throwing in my $0.02.