It's true, but I wonder if the way employees organize themselves will transform in such a way to make graph analysis less useful - similarly to how recent protests seem to work. From what I've read about Occupy protests, the Yellow Vests, and now Hong Kong protesters, they're all spontaneous and decentralized. Instead of an individual or a small group of leaders energizing the movement, there's something of a shared idea (a meme, if you like) flowing through the network, and once it crosses a threshold, you suddenly have thousands of people protesting.

(This immediately suggests a strategy to combat such organization: instead of trying to find out who the leaders are - which will fail, because there are none - one should focus on misinformation to create enough doubt and noise that the threshold for spontaneous organization isn't crossed.)