Yes it is desirable to have an engineering STANDARD...
Correct. At least to start with. Otherwise, all bets are off. What happens from there will vary widely case by case.
Audio nonsense
In this wonderful world of audio that we journey through folks selling stuff have sometimes been inventive in what they claim. In your trip down this road what sticks out as the most ludicrous thing you’ve seen someone try to sell?
I can point to 2 things. When I first saw a Tice clock in a store I thought it was a gag. Next- Peter Belt.