Prepackaged protest and righteous indignation
Why did Sara Netanyahu's dress attract such attention? It's because she exposed not only her body but also her disturbing lack of self-awareness. That is why the public discourse was necessary.
This is how the system works: Sara Netanyahu wears an astoundingly inappropriate dress, both for her position and her figure, to the swearing in of the new Knesset. Feminists automatically fire back that the body of the prime minister's wife should be off-limits for discussion and that her wardrobe should not be judged according to piggish, chauvinistic standards.