Alot of them do, not all, but the better you get at letting the traps and rear delts take the brunt of the load the less it will matter. Shoulder flexibility is often an issue with lifters who bench press alot and the wider grip helps take some of the stress off the shoulder joint.
Olympic lifters generally have much better overall shoulder flexibility due to the overhead work and not nearly as much benching. Ive seen oly lifters take a 45lb bar and do shoulder dislocations with it like it was a piece of cake, many powerlifters are lucky if they can get into a quarter overhead squat position with a legal grip on the bar.
