Mark Twain said,
Good breeding consists in concealing how much we think of ourselves and how little we think of the other person.
What my question boils down to is this: Could Twain have used consists of there instead of consists in and still meant the same thing? In other words, are there nuances to the word consist that shade the meaning in such a way that a different preposition is desirable?
Note that a search of the corpus shows consists in steadily declining since the 19th century (Twain's), and consists of may be supplanting it in all meanings.