I don't realy see the need for pushing the wings up during preflight to check its integrity. As long as nobody touched the hangar doors with the wingtips, or did not overstress the aircraft in aerobatics, it will be ok.
However, on the old Cub and Super Cub, we did this wing waggle before taxi, but that was to check the bungee springs on the landing gear. The gear could not extend farther than a red line marker or your bungees were bad. I did this waggle by pulling the ring on the wing, where your tie down chord goes. I sometimes do the same on cessnas, but that's just a habit I have from my Cub time.