Jacques Camatte wrote this specifically about leninist parties, but the use of the terms "rackets" and "gangs" is still applicable.
From this point [that is, under capitalism], a social fabric forms based on the competition of rival "organizations" (rackets).
Once within the gang (or any type of business) the individual is tied to it by all the psychological dependencies of capitalist society.
The desire to belong to a gang comes from the wish to be identified with a group that embodies a certain degree of prestige, theoretical prestige for intellectuals and organizational prestige for so-called practical men... Prestige and exclusion are the signs of competition in all its forms; and so also among these gangs, which must vaunt their originality, their prestige, in order to attract notice. This is why the cult of the organization and the glorification of the peculiarities of the gang develop.
In practice, anonymity – understood simply as anti-individualism - means unbridled exploitation of the gang members to the profit of the direction clique, which gains prestige from everything the gang produces... What maintains an apparent unity in the bosom of the gang is the threat of exclusion. Those who do not respect the norms are rejected with calumny; and even if they quit, the effect is the same. This threat also serves as psychological blackmail for those who remain. This same process appears in different ways in different types of gangs.
In the youth gang, the individual is beaten up or killed. Here, where we find revolt in its raw form, delinquency; the lone individual is weak, lacks protection, and so is forced to join a gang.