Not necessarily minorities in the US(in fact a lot of US minorities are overrepresented in tech), but if you could make say, a few Spanish speaking people in poorer parts of Brazil contribute, they could spread whatever knowledge they gained with their broader community and encourage more people to participate who might have otherwise viewed these things as stuff "genius hackers with degrees" do.

That would be my reasoning. We need to get people who would never see themselves as being able to develop software because they never went to university or don't have the 'brains' to get into it. There's a lot of wasted brainpower because of the false impression that coding is something for an elite few.