group cohesion, reinforcement, support, leads to better performance. i would add that it can also lead to cherishing, flourishing, and perptuating.
keith's book is very repetitive, and the ideas are much narrower and more sparse than they need to be, but the idea is important nonetheless; that
abuse, just like responsible behaviour, perpetuates — there are certain ways in which it perpetuates itself.
society perpetuates abuse by allowing mechanisms that allow privilege to arise and perpetuate. whether it is privilege through power or ability or identity or money or time or place or myth, they all perpetuate when there is no countervailing tendency.