I didn't say it was her fault.
It's society's fault for being interested - and we are - there have been many threads on here about these pictures: essentially grown adults typing words about pictures most of us haven't seen - pictures which do nothing other than confirm that a grown woman has breasts.
If we as a society weren't interested, there would be no pictures.
But then if we as a society weren't interested in the monarchy, there'd be no monarchy either.
It's not her fault it has happened, but it is an inevitable consequence of her being semi-naked where she can be seen. There are many things she could have done to prevent it - not get changed, go somewhere more private. (The villa where we went on honeymoon was more private then theirs - it was on a hillside and the pool had a wall around it, so they only way you could be seen by the pool was if someone got a very tall ladder - was pretty cheap too, so I'm sure they could have done better)
I'm tempted to say that it's so obviously a consequence that she might not actually care that much about it, but I fear that might be going too far.