Why doesn't Shiva make Sati alive if he is a god?

Why doesn't Shiva make Sati alive if he is a god? Prajapati Daksha plans a Nireeshwar Yagna ( where everyone except Shiva and Sati are invited ). When Sati devi comes to know about this Yagna, she asks Shiva “Hey Lord ! My father is performing this Yagna, which is neither good for him or for the entire world, so , let us go and explain my father Daksha to stop the Yagna”. Shiva denies Sati’s proposal, and when Sati insists, He agrees and sends Sati to Daksha abode. Sati faces insult at her father's abode, but she tries her level best to plead her father Daksha and all the people present in the Yagna, to stop it. Daksha insults Sati and abuses Shiva, Sati not able to bear Shiv_ninda( abusing Her husband God Shiva) by her father, immolates herself. God Shiva could not save Sati or bring her back to life because :: Sati before immolation says “ I feel ashamed to be born to a father like you. You have given me this physical body , as you are my biological father Daksha. I got Shiva in this life , without putting much effort, so I'm losing Shiva. After facing this humiliation, I can't go to my Shiva. I want to give up the title of Dakshayini ( Daksha’s daughter), so I'm immolating this body into ash. At least in my next birth, I want to be born to a father who would respect me and my husband. I would do rigorous penance and achieve my Shiva “. Sati could not realise Her true Shakthi form and immolated herself. So, Shiva could not breathe life back into Sati, as she wanted to give up the title of Dakshayini, Prajapati Daksha’s daughter ! In her next birth , Sati is born as Parvathi and after doing rigorous penance achieves Shiva forever