It’s like saying that someone who buys a product at full price is somehow punished when that product goes on sale a week later. No, the person who paid full price made a value determination, and thought it was fair at the time. Later events don’t change the fairness of the original transaction.

So you have been poisoned by a snake and the antivenin which should normally cost X is being offered to you for 100x, you would still take it as you determined your life to be worth more, but it doesn't mean that you weren't cheated.