Jacob proves to be something of a burden to to start off with. In the longer term however, he comes to be a far bigger asset than Billy could ever have imagined, owing to a unique set of circumstances.
As the story unfolds Jacob becomes something of a hero and the resultant publicity is enough to change both their lives forever in a very positive way. There is one final drama for them to both overcome before they can wholly benefit from their circumstances however
Besides being a story of hope, this story also seeks to show readers/listeners how being pleasant and good natured, often pays great dividends in the long-term, whereas being unpleasant and intolerant, generally has the reverse effect and can be a real disadvantage in life. It has been designed to inspire and give comfort to young people faced with seemingly overwhelming difficulties in life, (including physical disabilities).