Walter Kwok (former chairman of Sun Hung Kai Properties) is indeed considered one of the key figures who "broke the mold" in Sun Hung Kai's "century corruption case" (the Hui Si-yan case), leading to the imprisonment of his younger brother, Thomas Kwok. This case, involving the highest-ranking official and super-rich tycoon in Hong Kong history, originated from an internal power struggle within the Kwok family that escalated into a revenge drama. The catalyst for the Kwok family infighting: his confidante, Ida Tong...