I claim that human mind or human society is not divided into watertight compartments called social, political and religious. All act and react upon one another.
Unless you count the political backdrop, which in any case is a familiar one to many international readers, I don't think there's anything that I would call essentially Brazilian in João Gilberto Noll work. In that regard, it translates very well to a cosmopolitan audience.
How many really great writers are there who are totally non-political? You can hear the French Revolution in the poetry of [Percy Bysshe] Shelly and [John] Wordsworth; you can sense the vast inequalities of Tsarist Russia in [Anton] Chekhov and [Lev] Tolstoy.