Paul Carter wrote, and I like;
There are several factors that contribute to strength.
There are motor skills, e.g. timing and proper form.
Then there are nervous system adaptations, for example, recruiting as many fibers as possible, and being able to activate them all in milliseconds.
Then there's the simple issue of muscle. Mass moves mass. Once you maximize your neural adaptations and motor skills, to get stronger you need to have more muscle.
Reps in the 5 to 8 range are best for building the right kind of muscle.
Low reps are not as good for this purpose.
Different lifts involve these factors to different degrees.
A guy who does the clean and jerk may never need to put on more muscle, because the task of maximizing motor skills will be a lifetime endeavor for him.
But for something like a bench press, you quickly reach a point of diminishing returns. It's just not a complicated movement.
So for bench press, the way to get stronger is to build more muscle. And, as expected, the consensus for bench training is that volume and bodybuilding are where it's at.