IMHO, I think that the more you can strengthen the muscles on the back side of your body, the further you'll hit it. About a year and a half ago, I finally started utilizing some exercises that hit the posterior chain hard (deadlifts, good mornings, GH, etc.) and by the following summer I had picked up 15-20 yards off of the tee.
Some would argue that this could be due to new equipment or something like that, but I just finished up my playing career at a Division I school. I was fitted for my driver on a launch monitor and have also been playing the game as long as I can remember. The incorporation of these lifts were the only difference in my preparation, so I've become a firm believer in prioritizing the PC.
I think Eric would agree with me in that the PC should be a priority for almost all athletes, not just golfers. Through my personal experience, the carryover to strengthening the rest of the body is incredible when improvements in PC strength are made. And I can almost touch the rim now, too