While elites like corporate directors clearly benefit from shaping social networks to suit their needs, it is less clear whether these benefits reach other levels of society. If anything, social networks might be seen as an explanation for why economic inequality continues to rise. The logic is simple: if you are rich, you can attract more friends, and if you have more friends, you can find more ways to become rich. And recent changes in technology might make the problem worse. When it is easier to search and navigate social networks, the positive-feedback loop between social connections and success could create a social magnifier that concentrates even more power and wealth in the hands of those who already had it.
Seeing that this book is coming up to 10 years old, it would be interesting to see what new research says about our technology affecting this.