MY Ears are Everyone's Ears ?

HI ALL,
Life is amazingly fickle isn't it ?
However, I have pondered the following issue for many years........ and tonight thought that maybe I should 'put it out there' so to speak.
Bit of background...
FYI...my real job involves Architecture....( NOT the version as so recently 'HI-JACKED/STOLEN'  by our  I.T brothers and sisters ) ....No......The ORIGINAL drawing board,bricks and mortar ,stumbling around building sites type. :)
As an Architect...I have studied environmental acoustics during my career. I have also been heavily involved in the field of Disability Access.....where I learned much about the 'WILD' Range of acoustic receptiveness/response.
There is so much 'out there' now ..info wise..........about what makes a great mix and what to listen for .......etcetera etcetera !!
 
The best way to put this question/statement is:
"DO YOU HEAR WHAT I HEAR" ?
I have never ( AND.......Yes........I am only Human.....and may have missed something :) ), heard of any Pro mixing techniques described in terms of individual audio receptiveness or (I.A.R) .
For Instance (ie: Forget DAWS , Music production for a moment):
Has anyone ever sprung up from  a chair one night in your house and said "Did You Hear That" ? ......and you didn't hear a #@#% thing !!!
Have you ever heard perhaps... wedding guest's derogatory comments about the horrible bassiness of a band/duo who in themselves are happily and obliviously playing away unaware that 90 percent of the room wanted to KILL THEM!!!
We all have different audio receptiveness......including...................DARE I SAY IT..............our Audio Engineers.
 
So ,in general terms:
Is it fair to say that a GREAT (ie: Successful) Audio Engineer is best defined as a person who has an I.A.R  ( which fortunately for them), just happens to identify, accommodate and thus satisfy the I.A.Rs of the BULK of the MASSES ?
Cheers......Frank

And people's perception also varies over time so we might hear things tomorrow that we didn't hear today just because we are focused on something different when listening.

A great question by the OP. Like Mr Bit, I don't believe its much of a problem. If you mix for a living, or lets say, like many of us here, a very dedicated pastime purely for the love of producing the very best sounding music we can, then we can train our 'ears'. The very best way is to use a reference source in our listening / mixing environment. I am absolutely certain without any proof that this is how the art of mixing has evolved over the last 5 decades. Yes, classic quality recordings have been produced, mixed and mastered in stellar environments over that time, but I suspect the quality of the end product AS PERCEIVED by the public at large has been due to the musicality and skill of the mixing producer and mastering engineer by tuning in to their 'work' environment and adjusting their 'ear' intelligently to produce a satisfying end product to do the artist justice.