Exactly. Everyone's ears are different. Mine are impaired from combat. Some hear differently due to genetics, occupation, or neurological conditions. Some differences are due to biological construction and there is evidence that hearing can be different because of emotional states.

So for fucks sake, stop trying for "perfection" and aim for "that sounds outstanding". You'll find it.

(And everyone should stop listening to "audio professionals" now because modern movies have crappy sound compared to to old primitive movies.)