‘Nous partîmes cinq cents; mais par un prompt renfort, nous nous vîmes trois mille en arrivant au port.’ –Corneille
Cockroaches are actually highly social creatures; they recognize members of their own families, with different generations of the same families living together.
Cockroaches do not like to be left alone, and suffer ill health when they are.
And they form closely bonded, egalitarian societies, based on social structures and rules. Communities of cockroaches are even capable of making collective decisions for the greater good.
By studying certain species of cockroach, we may even be able to learn some insights into how more advanced animal societies evolved, including our own.