Different people have different rankings of what they consider to be a privacy risk. From recent news, we know that some people are very much into distributing personal images made by other people and kept in what was presumed to be private storage. We also know that some people enjoy manipulating images, including sometimes to torment those who have been photographed. Audio manipulation is less disturbing.

Consider also that some people have computers in line of sight of where they have sex, and an illicitly captured video recording of sex without sound is more often thought of as a privacy intrusion than an audio recording without video of the same ... as the noise from my neighbors might attest.