AC line conditioners

It was in the late 80's that line filters started being used in stereo systems with the introduction of the Adcom ACE-515 and then the Rolls Royce of the trade the Tice Power Block and Titan Power reseviour. Then came Chang and all the different solutions to "Dirty Electricity" and what it does to the sound reproduction of your equipment. My question is if these products are not used in the recording chain are we as audiophiles not being true to what sound the musicians,producers and sound engineers were trying to re-create in the sound studio? Remember these kind of line filters were not used in recordings before the 90's and i bet most sound studio's today don't use them now so are we trying to re produce sound that wasn't there to begin with?