What if the guy who pays the most for beer, drinks the most beer? In your example you assuming each man benifits the same amount. In reality the higher earners are the ones using more of the system.
In 26 years of my life I have used the court system one time which took a total of 15 minutes. Any boss I have had used it several times a year including multi year litigations.
I rely on the public transporation system generally for my own personal needs only. A higher earner or business may need that same system a thousand fold for customers, venders, employees, etc.
If China invades us tomarrow all I have to lose is pretty much what can fit into my car. A higher earner has much more to lose in real estate, businesses, material wealth, status, power etc.
Pursing a higher income is a choice and it cost money to establish and maintain an enviroment where an individual can obtain that higher income. The more money you make the more responsible you become to that system.