The bulk of my collection is rock-always has been & always will be. One of my very good friends is a jazz aficionado & has turned me on to a lot of different jazz over the years & although I enjoy it, I listen to & enjoy rock as much as I did in the 60's.
So the answer to your question is no, jazz has not dulled anything.
So the answer to your question is no, jazz has not dulled anything.