Punk wasn't a musical revolution thinking about it, it was always one of attitude - anybody can do it. With that it broke down a stale and conservative music scene and opened up the oppotunities for post punk/new wave/new romantic which would provide musical change.
Pete Stanley of St Etienne fame wrote a book about the history of pop and his thesis was that at certain times in chart history the underground briefly becomes aligned with popular music taste. This kind of tallies with 80s when various strands of the underground; punk, new wave, 2...