Responses

No this did not affect his character development because he never became good. He just see them differently now. Taeju is still a trash. The only thing different was that he sees the brothers as family now. Taeju only cared about his family and nobody else. Also, killing him is being nice to that bastard. He deserves to suffer.
Ofc a rapist will promote rape. Nothing changed in him. "Redemption arc" my ass. That guy abandoned his child but he doesn't deserve getting sold like that smh. Could have killed him fair and square but no the author loves rape.