Smacks of an appeal to elitism. Why not leave garbage chunky mossy loose and completely unworthy lines behind (and yet hard earned, or not?)? The "how" becomes important (regardless of direction top or GU), else the end result is all that matters. Is your argument that the quality of the line should be a determining factor in the effort to curb those of us with "FA Fever"?
Hmmm, well, glad you are trying to help me clarify...
I do believe that what is earned authentically is most worthy. Just because I myself might not feel like leading something that seems too dangerous for me or for whatever reason doesn't mean that it shouldn't exist. I think it would be elitist for anyone to over proscribe for anyone else. This is partly why I prefer variety. How climbs are established is significant even if it is not significant to some, in respecting variety. I'm not at all advocating that there be one exclusive style practiced in climbing.
Still, let's say an FA party establishes a free route without any protection bolts, calls it 11+, it's cracks and some face, and the route gets a name and rating in a guide. What's to stop another party from adding bolts if that is their preference on their ascent? Hopefully a sound sense of climbing ethics and regard for the original ground up accomplishment and perhaps desire to achieve climbing this route on its terms.
Of course there is sound argument for climbs remaining as they were originally established even if only a few can or would attempt them if the routes were earned free on the sharp end. Not saying anything earth shattering here.... Not to suggest that routes in general should be established for only a few climbers to do or that if some FA parties prefer to add some protection bolts after their initial GU climb, that they categorically shouldn't, though I could agree that some popular routes that went for many years without additional hardware might also best be upheld without retro'ing.