This is a very short post, with minimal statistical force, carrying the weight of precisely one writer's opinion, radically generalized to a universal law. Skip it.
Or "macho cultures" have a lower percentage of male college graduates, creating more opportunities for women at the top. Or they correspond to fast-growing underdeveloped countries which, because they are developing in an equal(er) rights environment, aren't replicating the male-dominated model elsewhere. But who knows? There's not any data to back p explanations in the article anyway.
Correlation does not equal causation. Brazil has a lot of features which differentiate it from countries like the US and UK. Picking two and simply assuming one must be caused by the other is a gross nonsequitur. Brazil also has a much stronger culture of birth control, and has experienced a lot more social and political churn in its recent history. I'd look to either of those as plausible contributing factors before fixating on negative stereotypes.
When someone talks about a country with the size of Brazil like if it was a little city is just dumb, and all concepts are just pre-conceived. Brazil has lots of different cultures, it's the biggest country on south america.
How are the US and the UK not macho cultures? Without clearly delineating what a macho culture is, this article is meaningless.
Here comes another loud Hacker News gender 'debate'.
I swear this community falls for linkbait more than any other.