"The Madonna bow" does not exist. She did not create that style; she simply picked it up from runways that had the bow on them years before. Did she popularize them? I would guess not but that's debatable.
Crucifixes and "studs" or leather were not started by Madonna
.
I swear, there's more to pop culture than Madge. Try to learn something about fashion and pop culture history instead of just trying to say Madonna started it all because she wore it once.