Truck drivers are handling hundreds of times more freight than mule drivers.
Your point is that truck drivers should starve because the results of productivity should go to higher management and to a lesser extent shareholders. Do you realize how simple that is? That it only gets complex when one tries to deny it? That it is the Conservative agenda to have a few superwealthy, a middle class which services them (physicians, engineers, etc.), and the rest poor, cheap and available?
It takes a person capable of seeing the results of their policies to be able to honestly answer that. The rest weasel.