You'll definitely find disagreement out there about the effectiveness of OHP for building the bench press. I know Dan Green swears by the OHP, and I'm sure there are others. Eddie Hall obviously has a monster OHP, and even though he's not a powerlifter, benches more than almost every human on the planet anyway. Not a coincidence. I think both movements support each other.
When I ran 5/3/1, and I knew on a given week that I was going to have to miss a day, I always skipped OHP. And I regret it immensely. I really, really, wish I had given more time to the movement. I wish I had pressed as much as I benched. Honestly, if I could go back in time, I'd overhead press MORE than I bench pressed (which is what I do now). UNLESS you're a high level competitor in powerlifting, meaning elite or better, I think overall joint health, range of motion, and variety of movements should be valued. I see way too many low level lifters get obsessed with the big 3, and develop serious imbalances that can affect quality of life.
Look at this guy's numbers. I know he posted this in the PL section, but do any of you guys REALLY think that, at this point in his lifting career, he should be throwing in his whole lot with powerlifting? I wouldn't. I would stay as well rounded as possible for as long as possible.