I think this has a lot in common with The Killing Joke. In both cases, a woman is humiliated in order to get to a male protagonist. And her personal humiliation doesn't even really count. It was never directed at her. It was directed at the man. Her pain is inconsequential.
secondly, I think the reason why he undressed Babs was to better show off the wound
Well, certainly to humiliate her and her father. To show her father that his daughter has been terribly injured and also humiliated.
In TKJ, Barbara was shot to get to her father and Batman. Then stripped and photographed, which was possibly to show how bad the wound was, but also, imo, definitely added to show how bad things in general are, ramp up the tension. Stripped, photographed naked? His daughter, whom he knows is Batgirl, is in that bad of shape to put up with that level of humiliation. Then there's the part of the male protagonist (Gordon or the guy above) experiencing the debasement of the loved one.
Here, it's quite similar. Woman as extension of male protagonist, gets the brunt of the assault (which is by design, humiliating, thus humiliating the man AND the woman, although she is just collateral damage.
TKJ: Babs shot; Joker not even knowing she's Batgirl) stripped and photographed in order to send pics to her father, Commissioner Gordon. The assault she receives is based not on her, but on her father.
These scans: Woman raped to humiliate her husband. (And her, yeah. But her personal hell is just an aside.) The assault she receives is based not on her, but on her husband.
Also, I would like to mention that in TKJ Gordon spent time stripped, himself (i.e. in leather sex shorts, if I remember correctly) also being photographed (if I recall correctly?). Nobody mentions that, I've noticed, in TKJ discussions, which tbh, I don't enjoy, but... that is odd to me.