Other benefits of caregiving include: an improved sense of self-worth, increased self-satisfaction, a sense of mastery, increased intimacy with their ill loved one, and a sense of meaning.
A short-sighted decision by the military authorities, afraid of penalties, was to fulfill the order (the penalties would have been less than the worth of two aircraft - about 440,000 zlotys).
It is worth noting that this metric places more weight on the low degree nodes, while the transitivity ratio places more weight on the high degree nodes.