You are wrong. Most students in key universities are well-off, not necessarily rich, but they have nothing to do with poverty.

Harvard, a world-famous university, made a survey of its own universities. The proportion of students from Harvard University is much higher than that from poor families. More than 70% of the students have their parents or relatives graduated from Harvard.

The richer a family is, the more it attaches importance to children's education, because an uneducated scum can't keep his family business. It may take several generations to get rich, but one generation is enough to get rid of it.