1. I've read the following opinion: "A good person is not a harmless person. A good person is a very dangerous person who keep that under conscious control". Or, in a nutshell:
Good = benevolent + strong.
I've yet to see a work of fiction that portrays that as well as this work. At the beginning, Connie is a benevolent girl, but a very weak one. She is, as
@Horunic aptly observed, a complete doormat; as such, she's in a very real danger of being eaten by the wolves.
And then, she meets Scarlet.
Scarlet is, without doubt, a strong person. She is completely a social expert, a mastermind who can divine each person's character within an instant of meeting them. In addition, she can not only recognise, but also respond to a conversation that has several layers of meaning, from the most superficial to the most deep.
Put them together, and what happens? Now, Connie realises that she was in serious danger, and needs to adopt Scarlet's tactics in order to survive. But, she can't put aside her benevolence, and decides to use those very same tactics in order to cause social good.
So, in a nutshell: Neither Connie's benevolence nor Scarlet's strength make a good person on their own. Put together,
that's when you have a good person.
2. I don't think there's a force for good which, if misapplied, doesn't become a force for evil. This manga seems to focus on femininity as such a force, detailing its toxic and healthy aspects, and the clashes between the two.
Healthy femininity is empathy, caregiving, stability . Toxic femininity is social bullying, subterfuge, undermining, guile, malevolent seduction. Again and again, in this manga, this clash plays out: The heroines constantly try to care for other people, keep chaos at bay, to make others happy. The villainesses (the
actual ones) constantly scheme, lie, bully, and use their husbands for political gain. The heroines face problems head-on, with courage; the villainesses run when the situation is no longer in their favour.
As I mentioned once earlier... I might need to get a life.