Yes, and there is this notion of control points which allow you to extract sets of nodes in graphs as hierarchies. For instance this research: http://www.ploson

Yes, and there is this notion of control points which allow you to extract sets of nodes in graphs as hierarchies. For instance this research: http://www.plosone.org/article/info:doi/10.1371/journal.pone.0044459 http://www.plosone.org/article/info:doi/10.1371/journal.pone... I would argue that well designed organisations or networks should have enough connections to route around/detect minor damage/corruption and quickly isolate the problem. For instance small world networks have this property http://en.wikipedia.org/wiki/Small-world_network http://en.wikipedia.org/wiki/Small-world_network . Not all nodes in flat human networks are likely to be equal in information flow, but a plurality of high degree nodes does somewhat mitigate cascading failure due to disconnection but may increase cascading failure due to interconnection such as viruses.