From what I can tell your comment essentially reaffirms what I said, except that on this part: > Informal power structures in hierarchal groups have less power

From what I can tell your comment essentially reaffirms what I said, except that on this part: > Informal power structures in hierarchal groups have less power and they happen only between peers. I think, unless you work in a very strict command-and-control style company, you're heavily underestimating the influence of the average informal power structure.