You can destroy the world with a keystroke, or you can walk away. You don't care about yourself, or anyone and anything else for that matter. Your feelings for everything are completely neutral. However, you are a rational being, and as such you can use logic to come to the "right" decision.
So, the factor becomes the individual's beliefs. Because they are opinions (educated or not has no relevance), there can be no right or wrong answer.
If the person had my beliefs, then he would walk away from the button. I walk away because I have to realize the human universe doesn't revolve around me. I may have the power to destroy it, but that doesn't make me greater than it. And because I'm apathetic, I'm outside of the system. As such, it's not my place to disturb it. My option is suicide, or seclusion.
But that's just me.