Meng Tian's military achievements were earned in Bingzhou and fought for Bingzhou. Therefore, the rewards he received were for Bingzhou, not for the State of Qin. While the State of Qin acknowledged his talent, that did not mean it recognized his achievements.
Even if Qin were to ask for Meng Tian back and grant him the same status and position, would the people of Qin themselves agree?
Most importantly, ever since Bingzhou launched its western expedition, Meng Tian had no longer drawn a salary from the State of Qin, receiving his pay entirely from Bingzhou instead.
Chapter 656