OK465
In the A330, in ALT1 or Normal, nothing is leveling the wings but the pilot either. The wings are not automatically leveled when you release the SS input in either ALT1 or Normal laws. If the bank is more than 33 degrees in either law, ALT1 or Normal, true, the aircraft will return to 33 degrees of bank if you "let go da SS".
In ALT2, while hand flying pitch, the A330 is not the "squirrel" it is being portrayed as. Nor in roll.
That was a nice discussion about rolling your swept wing bird with rudder. Every swept wing tactical aircraft I flew rolled nicely at high AOA with rudder. It was considered the nature of the beasties and was essential to obtaining max maneuvering performance. You could even hold the aircraft in a stall and pick up the low wing with rudder when one wanted to drop. The wing drops became progressively more abrupt, however, so there was a limit to how long you would want to do that.
I have inadvertently overstated wing leveling ability with regard to Alt 1 Law (and Normal Law). I was intending to infer ability of the system to keep the shiny side up.
Per FCOM FLIGHT CONTROLS
Up to 33°, the system holds the roll attitude constant when the sidestick is at neutral.
Of course the system is not a wing leveling system, it is an attitude holding system, until you get into Alt 2 law. Then the wing attitude in roll becomes the sum of pilot inputs, environmental inputs, and lateral imbalance/rudder mistrim inputs. In Alt 2 law, the pilot must control the wings. No hands off is possible unless the aircraft is in perfect trim and the air is smooth.