Actually, these distinctions are not just in the imagination. Of course a system cannot provide an accurate portrayal of an event, but it can provide an impression of believability. To your earlier point of each violin sounding different, that is true, but believable sound moves within a certain range. Once you're out of that range, there is no believability. A violin on my car radio is always recognizable as a violin, but it never sounds believable other than on the most superficial level. A halfway decent violin recording played back on my system has a believability that my car radio never matches. Of course it still doesn't sound like live, but it comes much closer, and to me it's a thrilling experience.
If someone does not approach things from a solid reference, such as unamplified live music or convincingly sounding vocals, they may go for a superficially exciting sound that is not natural.
When I was in college in the 1980s, a room mate was cranking up the treble on a Supertramp song, making the voice really tipped up sounding, among other things. I turned the tone control back to neutral, saying this sounds "much more natural" (sic) -- yes, I used that term long before Natural Sound(TM). Sure, it sounded less superficially "exciting" that way, but much more musical.
Apparently many people like their sound skeletal, without meat on the bones, and tipped up with unnatural energy in the highs, partially in the search of ever more fake "detail" and fake "resolution". That was the character of most (thankfully, not all) of the sound that I heard at T.H.E. Show in SoCal last year. Certainly, some of that may have been the culprit of bad room acoustics and bad electrical power in those hotel rooms, but I suppose some, or probably a lot, of it was by choice. At the end of my first day there my ears were literally hurting (even though I avoided the loudest parts).