A long harsh digital trip - final meter?


So the digital signal manages to find its way to a utility pole in front of your house. Then enjoys a coaxial sprint to a modem, and then head over to a modem, router and then into a Roon nucleus. Up to this point, a rugged unprotected harsh trip. And now this signal flows along a very refined ubs cable and arrives at a dac for final prep work before reaching a high end system. 
      So why does the final leg of the signal’s journey inside a usb cable seem to matter so much toward improving sound quality? What happens here to revive a digital signal that has traveled hundreds of disgusting dirty miles to reach the analogue chamber of rebirth? So I guess it’s possible to truly transform and correct a digital signal during a very short journey thru a usb cable?
emergingsoul
Oh, great idea.   I’d prefer spending more money, but this seems more prudent. Now searching for audiophile grade electrical tape.
djones51, what you have suggested in terms of sound enhancement, I have no comment, as I have not done so. However, as to methodology, if you do not treat all the cables similarly, you are not showing superiority one cable over the other; you are showing a potentially efficacious method.

What if that method was applied to all the cables? Have you tried such a comparison?

BTW, have you actually done the comparison you suggest? 
No, I haven't but then again I was never obsessed with + voltage on a USB cable and I doubt the OP was either until the babble. It's just a simple test to show it's irrelevant.