The last one was not cool. Yeah, to our eyes, we can see that the aunt was being hypocritical about family values, but the aunt probably honestly thought that she was giving helpful advice to her niece, not knowing that her words may actually hurt her niece. Throwing back intentionally spiteful comments does not resolve anything; the author just ends up using the exact thing that she was trying to combat in the first place — hurtful words.
lol savage is not used to enforce conformity. It’s just something you say after someone else makes a particularly badass and daring comment.