Because you are neither an angel nor a god. I am quite aware that your actions have been prompted by your pure feelings, and I understand perfectly well that, for that very reason, you do not wish to receive money for what you have done. But pure unadultered feelings are dangerous in their own way. It is no easy feat for a flesh-and-blood human being to go on living with such feelings. That is why it is necessary for you to fasten your feelings to the earth – firmly, like attaching an anchor to a balloon. The money is for that. To prevent you from feeling that you can do anything you want as long as it’s the right thing and your feelings are pure.