As I know, the collective nouns that describe a group such as audience, family, group,public,school society are usually used with singular verbs in American English.
But in British English, it can change. For example, the family is well and sends its best wishes or the family are all well and send their best wishes, but not the family is well and send their best wishes.
Consequently, the Brazilian society is a singular noun .If you are not sure you can use Brazilians instead of the Brazilian society.