Ning Ge didn't bother flattering Qi Taiguo; the atmosphere at the Chiang Family indeed wasn't the same as before. Ever since Jiang Dafang 'acknowledged' Jiang Conghe, the harmony and joy that once filled the Chiang Family were no longer there.
Jiang Dafang is a proud and capable person who doesn't indulge in scheming or flattery. It seems that he purely acknowledges Jiang Conghe as his father and only recognizes him as such. So, usually, he speaks with concern and offers words of consideration for Jiang Conghe.
As a result, Jiang Conghe grew happier and more trusting of him, especially after taking some of Jiang Dafang's suggestions, which made his political journey much smoother.
Jiang Conghe believed that Jiang Dafang was his eldest son, resembled him in appearance and capability, which is why he was so promising.
