If my understanding of Ged's post is - it's alright to play pressings of Frank Wilson and Lou Pride out, because otherwise you wouldn't have heard them much over the last 20 years.. Then with respect, I'm sorry but I strongly disagree.
In the last 20 years you would, should, or could have got these sounds on tape and listened to them at home or in the car. Who has the right to embark on such a false moral crusade?
Having rare original singles played out by dedicated collectors/DJ's is what helps keep the music rare and desirable. If thats uncomfortable for some, then to quote Pete S, tough s**t.