I have a few songs which were sampled and it helped me appreciate the producer's talent because they reinterpreted a song in a way that seemed inconceivable, but I can't think of a case where I heard a sampled song and it made me appreciate the song which was constructed on its own.
Or are you asking about the increase of respect for a producer AND the song based upon the sampled song?
I guess the only ones I can think of are Dilla's Little Brother and Premier's Mass Appeal.