If I have a choice between actions, and one of them is more likely to save the world than the other, I will take the one that is more likely to save the world.

There are certain actions for me such that the impact that they have on the probability that the world will be saved is insignificant enough that such impact is overwhelmed by the amount of immediate fun that they will generate, so an action that generates lots of immediate fun may be more desirable than one which increases the chance that the world will be saved by a really-super-small amount. Are you saying that for EV_Eliezer, there is no increase small enough in the chance that the world will be saved such that a huge amount of immediate fun is of greater terminal utility?