You're probably right, it probably was to show she wasn't ashamed, and honestly she had nothing to be ashamed of. I think she looked fine, except that I do agree with iloveroyals in that those particular photos made her look arrogant or challenging rather than elegant or regal. (Sorry if I'm putting words into your mouth iloveroyals, I thought that was what you meant.) But that's just my opinion, who am I to say she shouldn't look arrogant or challenging if she wants to. I'm sure we all feel like that sometimes.
Let me put it this way. The photographs emphasized a feature, haugthiness, which came through because of the starkness and hardness of the angle. It was interesting and artsy, and "purified" so to speak, the essence of Caroline, or
an essence of Caroline we are not used to, and which I personally don't like. Now, she has a right to like herself that way and to want to have an image of herself displayed that way, and we have a right to like it or not. I can speak of "right" comfortably here since she chose to have herself photographed and sold commercially that way.
The Caroline I like, and that may be my own limitation, is, as I've said before, one that expresses the best of femininity : grace, elegance, gentleness. Her spirit and strength of character always shine through. But to me, these pictures are reductive, not all-inclusive (of all her traits).
If someone has the paparazzi pictures taken of her in Saint-Remy de Provence (I remember they were published in Hola at the time, but I don't think I have the clippings), it would be interesting to compare. She was wearing a kind of beige or grey cotton summer pant and top that made her look like she was in a concentration camp. But she was looking at her children playing, but it was like the Chesthire (sp?) cat, all you saw was the purified gentleness of her face with that half-smile.
To answer the last part of your post, yes, we must all feel arrogant and challenging at times. But unless I want to scare my students into working harder, I'm not going to choose these pictures to represent me ! I'd choose a photographer who can capture the great complexity of my personality...