Why is consumerism good?

It's good because it leads to more things being bought &Used

Explanation:

the growth of consumerism has led to many organizations improving their service to the customer

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.