Why do their death have anything to do with 楊振寧?

楊振寧 is correct that he“總是能在關鍵時刻做出正確選擇”.  Judging from the choices he made, he is clearly smarter than 蕭光琰 and 姚桐斌.  No wonder he won the Noble prize while the others didn't.  I don't see how you can call anyone making the right choices for himself 卑鄙.  The very problem of culture revolation is trying to make people not self-interested.  The result?  - just look at today's China.