I've got no idea how much my standard of living would change if I had that much money. I think you need to include in your assumptions a cost of living, because this decides how much you're willing to give away. E.g. if you're cost of living is $50,000 and you want to save $50,000, that leaves you $100,000 to spend on giving people money or taking it away.

Of course if you have an incredible hatred for someone you might be willing to spend your entire lifes savings and not eat for a year to send them busto.