And the absurdity becomes much more obvious when contrasting with the differences in speakers and speaker crossovers...
As a guitarist, I did guitar cable listening tests. With passive guitar pickups (high impedance, low output devices), different cables have easily audible fingerprints. With active pickups, there's no difference at all. The difference between cables is no longer enough to audibly affect the signal.
And within this realm, more expensive doesn't always mean better. I've had cheap cables sound better than expensive cables.
Some of the expensive cables are over-dimensioned or crazily constructed leading to excess capacitance and/or impedance which would lead to terrible performance with a high impedance driver.
Is it transformer-coupled? (Rare in hi-fi, common in pro audio) Capacitor coupled? Direct coupled? Differential? All of these have different and frequency-dependent capacitative, inductive, and resistive behaviors. Put in those terms, it's kind of a no-brainer that cables would matter.
But in "objective" internet-land, it's all straight wire with gain, perfect flat resistance. Which is fine on paper...