Ads featuring real women and real beauty are such a necessary component to offset the potentially dangerous programming out there for little girls.
Conventional dogmas, even if endowed with the authority of an Aristotle - ancient or modern - must be tested vigorously. If they are found wanting, we need not bother with them. But if they are found to be substantially correct, we may not overlook them.
It does not seem, however, that organic chemists were much worried about barriers to rotation in organic molecules in general at that time because there was no technique available to demonstrate the phenomenon experimentally.

