If you find Lenna "erotic" and "out-of-place" then you probably shouldn't watch TV or 90% of media.
It's a picture of a model's face. You're an adult, deal with it.
It's a picture of a model's face. You're an adult, deal with it.
Or that there's a meaningful difference between media you choose to consume for entertainment (which may be honest-to-goodness porn and that's _fine_) and irrelevant eroticism casually sprinkled in tech demos that don't explicitly involve sex.
I wish we could at least be real about the facts in evidence.