Nope, it is a way to regulate the Radio Service. If they have to track
you down, then they have your License Suspension to hang over you. If
you don't have a license when they track you down, then you PAY, Big
Time, for operating an Unlicensed Station.

I don't understand how you're making the connection between a high fee and
regulation of the service. How does a high fee serve to regulate a radio
service? And if it's so effective in doing so, why is the Amateur service
license essentially free?