In Brazil, public universities were dominated by the rich, mainly whites, since the entrance exams required high grades that only those who could pay for expensive exam prep courses would have.

Since 2012, with the Law of Social Quotas, that reality has changed, since 50% of the new admission spots are destined for students coming from public high schools, with further subdivisions for racial minorities based on the demographic makeup of each Brazilian state. Those racial minorities quotas are as high as 30% at some universities.

I could personally see that change, since I did undergrad in engineering 10 years ago, and my colleagues were mainly white. I'm doing another undergrad and my new colleagues come from truly different backgrounds, some are black, poor, from indigenous origin... and that matters because if we don't share the same spaces as universities students, we probably won't share latter on, when occupying spaces of power