Why would you sacrifice yourself for the common good when everyone else wants to cheat? It will cause the death of you! You're not a sucker, are you?

When your roller coaster finally starts to curve downward, those in the front will be able to see as clear as day where the bottom rests. If no one panics we will all survive, although unhappy; if people panic, no one will survive but those who panic first and they will leave as kings at the expense of the dead. So what are the people in the front of the car to do?

As everyone rushes for the door, the levees will break, no amount of pumps can push back this flow. No-one thought all the holes could open at once, but of course they will; when the ones holding them realize the first to leave still get a golden life boat... while everyone else drowns...

Distractions until then.

Everything gross and grand to come (even if just in part) is a distraction from the realization that we need to escape... because the people at the front have already left.

Disclaimer: All predictions are based on pure speculation, which is taken from hypothetical scenarios of peoples actions deduced from probabilistic models.