As a former competitive USPF powerlifter, with three Master's ratings and one Elite rating, I say with absolute sincerity; I have never seen a competetive powerlifter pull aka deadlift more than once a week.
That said, my best competitive days were during the Clinton administration- things change.
Bodybuilding? Many excellent BB'ers did lots of DL's- Michael Francois, Jim Quinn, Tom Platz, JP Fux, Aaron Baker- just a few cats I knew personally. I say throw them in off season, and drop then as your diet tightens.
Send me a postcard when you're famous.