I think this is express our actual life and some troubles in our life, and tell us the right attitude to face our life, especially when we are in trouble.
Scrooge was a young man full of love, have a warm, complete family. But before, Scrooge has a cruel, boring life, as he change himself, finally he had a wonderful, happy, joy life. He has a responsibility to take care his family, his wife. And at last, he did it.
Nicole