Yes, they probably don't care. In some circles, quite often the ones where the most money is, a hacked pair of headphones will always sound worse than an untouched one, no matter if lab instrumentation would say otherwise.

You're looking at this all wrong.

The 595s were competitive at their price point. They reviewed extremely well. They are considered good value.

The 555s were excellent value, using the same driver.

Neither is a ripoff. They're both good to excellent value when looking at the market.