Occurrence of "sermons" in family genealogies

Question

I've read a lot of published family genealogies, but I don't recall any that included 'non-genealogy' blurbs like this one, in The History of the Moon Family. (See p.128) 

Has anyone else seen something like this before?

WHAT IS PROFANITY? It appeals to me very forcibly, that if everyone knew the real definition of profanity and its effect on mankind, they would, I am sure, abstain from its use. ......

It would be a grand day in the world's history if the news were to flash over the wires that America had been made free from profanity by the influence of our good women.

Answer 1

Yes, I find those things puzzling. The old books are very quirky sometimes.

Answer 2

Published the same year the 19th Amendment was ratified.

Answer 3

I’ve seen this is simple biographies published in the 19th century and well into the 20th century. I suppose it was a part of the culture then.