Ideologists of all kinds find a strange sort of comfort in the madness of the crowd; it confirms them in their suspicion that history, far from being made by the great mass of individuals - as Marx averred - is rather unmade by a single massive individual, a collective Other, who stands in stark contrast to you and he.
Sometimes the crowd is the madness - at others it's the absence of the crowd that is.
I'm an anarchist. I'm implacably opposed to heirarchical systems of power and control. I also mistrust crowds, as they often operate according to their lowest common denominator. In terms of evolutionary psychology, the crowd is very close to a herd of stampeding wildebeest.