I am the son of an illiterate father and mother.
From an ethical point of view the price difference is grotesque and from a political point of view, it represents a lack of respect, as though a sick Brazilian is inferior.
A long time ago I learned not to put the blame for backwardness in Brazil on the US. We have to blame ourselves. Our backwardness is caused by an elite which for a century didn't think about the majority and subordinated itself to foreign interests.