I suppose it depends on the price of the pact and my knowledge of what happens in the afterlife.

If, for example, I'm selling my soul so those thousand people get fifty more years of life and then they move on to a great after-life, what did I sell my soul for? Now I'm screwed, and just cause I delayed their glorious after-life for fifty years.

And what happens if I sell my soul? Do I get turned into a devil, and if I'm a devil, do I go around killing folks? Will I end up killing more than a thousand people?

Or will I be pushed inside some coin and fed to an infernal machine, disappearing forevermore after one excruciating moment of unbearable pain?

I'm gonna have to see this contract. I need details.