The OP suggested 1 billion rational answers. Or 35 million. Or one of those values divided by whatever amount of money it'd take for you to live comfortably for the rest of your life.
It's easy to condemn people for being realistic about their reaction to such a sum of money. Perhaps your scruples would prevent you from taking a massive payment to leave behind something you've created, but I think it's more likely you're trying to take a moral high ground that's not grounded in reality.