Even if in the Tang era of the feudal epoch, the Emperor Tangtaizong had a expostulation liegeman who named Weizheng beside him.He would not make the Emperor Tangtaizong in the shade.
Because almost everything all external expectations, all pride, all fear of embarrassment or failure - these things just fall away in the face of death, leaving only what is truly important.
But the fact that he loved Rachael and then went and fathered her robo-baby is also enough to make anyone — replicant, human, or otherwise — stay in hiding.