"国内条件艰苦" - At that time, life was hard everywhere in China. How could the military industry be an exception? Do you honestly think that China could give everyone in the military industry a living standard comparable to what Yang Wei could have abroad?Deng's cut caused many R&D staff having a hard time making ends meet. Many of them quit and left to join the private sector or gone abroad for further study. The chief designer of J20 and JF 17 Yang wei (杨伟) almost left China due to tough conditions in 1990. If not for his mentor, the chief designer of J10 convinced him into staying, it's hard to say what would've happened to the later J20 program.
Because of the difficult conditions, Yang wei applied for working aboard and received his passport. His mentor/teacher (宋文骢) chief designer of J10 told him not to go so he stayed and later became chief designer of J20.
Had Deng not cut the losers, there probably would have not been the J10 project. Where would Yang Wei have been then?
Anyway, as we are getting off topic, let's agree to disagree.