If you just survived a game where:
-hundreds of people died horrifically,
-you earned millions of dollars,
-and you're traumatized for life...

Why in the hell would you go back willingly?
It defies human psychology, survival instinct, and basic logic.

Reasons You Wouldn’t Go Back:
-You already won. you beat the system.
-You have nothing to prove. risking it all again is idiotic.
-The trauma alone would give you PTSD. Going back would re-trigger it.
-If you cared about others, there are better ways to help: money, press, investigations, advocacy.

The Only Plausible Reasons to Return (Story-Wise):
-Your prize was fake. they never gave you the money, and you were manipulated again.
-Someone you love is trapped in the next game and now it’s personal.
-You’re terminally ill and want revenge
-You infiltrate the game undercover, not as a player, but as part of an operation.

Otherwise? No sane person with $38 million and the memory of watching people get gunned down over Red Light Green Light would say:
>"You know what? Let me go back into that murder playground for fun."