It's to help others when they need some assistance.
Jack sees Phil's car broken down by the side of the road.
Jack wants to decide to stop or not.
Jack stops his car and tries to help Phil out by the side of the road.
Jack speeds on by Phil's car and continues driving along.
Jack is able to fix Phil's car and Phil thanks Jack for his efforts.
Phil stands out in the rain for hours before a tow truck arrives.