In what way is Mr White's first wish fulfilled?

In "The Monkey's Paw" by W.W. Jacobs, Mr. White's first wish is fulfilled when he wishes for £200 to pay off their house. Shortly after making the wish, the family receives news that their son, Herbert, has died in an accident at work, and the compensation awarded to them is precisely £200. This dark twist highlights the story's theme of unintended consequences and the dangers of tampering with fate.