u/Akanash_

I made a breakdown of whether you should press the blue button, based on a purely utilitarian trade-off.
On the basis on how many people you think will press blue on average and how confidant you are on this, it gives a if you should press blue based on many strangers like you would save by sacrificing yours.
The spontaneous organ donations area mean you are ready to sacrifice yourself to save less than one other life, which you can already do by giving your organ at random.
The pure utilitarian threshold mean you value your life exactly as the one of any stranger.