I do this on long drives, but always have to put it back to normal when it's time to park. It would be neat if cars would implement some sort of automatic switch between this configuration and the straight-back mode when reversing.
Meanwhile when parking I don't need to see things more than a couple feet from my car.
My current car has cameras which show me the ground around it when I press a button which solves all my needs. Probably a better solution, but not on most cars from what I can tell.