It may be poor taste to take joy in other people's suffering, but I wish that I can share that bottle of champagne with Mr Fong (alongside members of his deceased family, in spirit), while watching the "Crab family" committing suicide after their bet in the indices futures market fails spectacularly. As each member of the Crab Family jumps off the building, the audience are reminded of how all members of Mr Fong's family are killed. In the subsequent years since this drama first aired, I've never questioned my schadenfreude.
What also makes the final showdown so special is the buildup to that, especially for Mr Fong.