There a difference between overpriced and snake oil. If you claim that your cables "gives the breath-taking experience of ‘being there’ thanks to the purity of its conductors and their precise geometry" your firmly into the snake oil territory. If you sell an amp with hand picked components to achieve 0.001% THD at 100w on a 4KHz test tone, it's probably overkill and overpriced but unlike the cables it's not fraud adjacent.