This movie is actually based on a short story called "The Button", which has exactly the same premise. However:
I would never do it, as there is too much suffering in this world. To everyone who said they'd do it, I honestly hope you were joking, because if you weren't then you are everything that is wrong in this world and should burn.
When the wife decides to press the button her husband dies and she collects his insurance money (although it was $50,000.00 in the story). She did not want her husband to die, and when she got mad at the man who told her someone she didn't know would die his reply was, "Did you honestly think you actually knew you husband?"
I would never do it, as there is too much suffering in this world. To everyone who said they'd do it, I honestly hope you were joking, because if you weren't then you are everything that is wrong in this world and should burn.