Why are Tsinghua and Peking University the biggest training bases for traitors in China?

The present society is not a closed old age. If a country wants to make progress, it must learn all the advanced technologies and sciences in the world. Tsinghua and Peking University are the two highest universities in China, which have concentrated a large number of elite talents in China. It is an indisputable fact that many students go to international famous schools for further study or study abroad or even emigrate. What we need to reflect on is the system and mechanism of elite training. For example, most students admitted to Tsinghua Peking University have been specially cared for and trained by the education system since primary school, which consumes more educational resources than other students. For example, top students' specialties, scholarships and so on. This is actually a very unfair education and training system. After all, the educational investment that the state spends on a student is bound to be returned by the student's academic performance. In this sense, it is unfair to blame only schools or students.