Precisely and speaking of noise ... There are not always easy solutions to implement !
Why then do we make so much noise when some USB cable approaches zero noise ?
Bad circuit designs and electronic parts ? There is a lot too !
Of course, the audio industry has crickets, but mention me one industry in which there are no crickets. From the pharmaceutical to ... Please mention it.
But I would call them illusions sellers 😂
From the other side some people are not interested, or simply they love noise because they are accustomed, even if they finish with headache after a short listening session... Those aren't audiophiles, but a few, deaf audiophiles...