remember how they said that each dead participant's family...
...would get 100 million Korean won?
Well, that only would have happened if the survivors walked away, correct?
So if there is only one winner in the end, the remaining 455's families actually got fuck-all - is that accurate?
Then why would 187 people have come back to play if they actually knew there would only be ONE winner? Far not all of them even had reasons to believe that they would be the one. That would have meant that not only would they have knowingly been leaving their families in crushing debt, then, but also permanently depriving them of a provider.