If the goal is to be fair, the fairway should get wider as it goes since a ball hit a certain number of degrees off line needs more room as it gets further out there so in order to be fair the fairway should slowly widen. For example, under the USGA Course Rating system, even though the scratch golfer hits it straighter than the bogey golfer, he has a wider area of dispersion at 250 yards than the bogey does at 200. This is part of the reason that the big hitters miss more fairways.
I think that this throws everything that makes the Tour interesting out the window. If your fairways get wider the further out, then you've completely excluded driving accuracy as an advantage in playing a golf course. You've made extinct players like Corey Pavin, who are supreme shotmakers, in favor of the goons like J.B. Holmes, who will just hit it everywhere, but be close enough to the green for rough to be all-but pointless.
Distance is a double-edged sword. If you can hit the ball 320, then you should have to learn to hit is straight, like the rest of them. You should only be truly rewarded when you hit the fairway, which should be no wider than it is for your peashooter opponents. Your length must force a compromise, whereby you must play from substandard lies more often, closer to the hole.
However, many weeks out of the year, the Tour doesn't care about driving accuracy that much. When they go to venues like the TPC of Louisiana or other such big-hitters' paradises, they are clearly looking for ratings, for what average golf fan wants to see shotmaking when they can watch Tiger hit a ball 350 yards off of every tee?
I'll take short and straight over long and wild every time, thank you.