Actually, it could be argued that by saving the cat, you contributed to the continued mental and emotional well-being of its owners, saving them a lot of stress (which is physically bad for you anyway) and emotional hardship as they have to deal with the loss of their cat. Of course, their house has just burnt down (which I bet will cause them stress and emotional hardship). But at least they have their cat, which I suspect they would consider rather irreplaceable.