It’s not a silly example but rather a common one. Many years ago it was only the fat that were attractive because they were the financially secure. Many believed that royalty were th only form of legitimate government, and colonial activity among “savages” was doing them all a favor.

Science, academics, and even personal experience vary with time. Not all variance that follows is truthful...some is exaggerated purposefully or accidentally, though most is considered good information at the time.