aram,
You're only looking at the THS and elevators in
mm43's super graphic. The chord line is the THS chord line. As you say, the wing chord-line would be at least 13deg higher. (I say "at least", because it depends on the "riggers angle of incidence" of the wing, relative to the longitudinal axis of the aeroplane. Some aeroplanes have a couple of degrees positive, the B707 being an example. Don't know what the A330's is.) For all intents and purposes, the line marked "Attitude", represents the wing-chord angle.
By the way, the whiole of the HS hinges (at its aft spar): hence "Trimmable Horizontal Stabiliser" (THS). As
RetiredF4 and
mm43 have said, the THS aerofoil can be considered to be mounted upside down, because its normal role is to produce lift in the downward direction. Hence the camber is actually greater on its bottom surface than its top surface.
mm43's graphic is not intended to show that. Look at
Conf_iture's photos
here in Tech Log.
Hope this helps.