Let's not even talk about compassion for now. If she were the one to pass this matter on, then even if she wanted to shake off this trouble, she might not be able to. And as long as Mei Yinan got angry because of this, she would remember the person who told her in the first place—that is, Mei Mengzhen. Over time, how could Mei Yinan not develop some negative feelings toward Mei Mengzhen?
Also, Mei Yinan feels sorry for her brother. No matter how pitiful she is, there's still some emotional distance between them. So how would she balance her brother and her niece in the end? That's another issue entirely. Either way, someone is finally taking care of Mei Mengying's problem, and what happens to her and Mei Yongfu is no longer any of Mei Mengzhen's business.
You have to hand it to her—that's what you call a perfect calculation.
