A non-negligible percentage of corresponding members of Academy of Sciences of the USSR were born in rural areas [1] (look at these who were appointed at around

A non-negligible percentage of corresponding members of Academy of Sciences of the USSR were born in rural areas [1] (look at these who were appointed at around 1970-1980, they most probably born in USSR). [1] https://ru.wikipedia.org/wiki/%D0%A1%D0%BF%D0%B8%D1%81%D0%BE%D0%BA_%D0%B0%D0%BA%D0%B0%D0%B4%D0%B5%D0%BC%D0%B8%D0%BA%D0%BE%D0%B2_%D0%90%D0%BA%D0%B0%D0%B4%D0%B5%D0%BC%D0%B8%D0%B8_%D0%BD%D0%B0%D1%83%D0%BA_%D0%A1%D0%A1%D0%A1%D0%A0 https://ru.wikipedia.org/wiki/%D0%A1%D0%BF%D0%B8%D1%81%D0%BE... (Russian) How do they come to such heights if applying to the study in large cities was restricted, is a complete mistery to me.