Why can't Jiang Ziya become a god?

Many people have different opinions that Jiang Ziya can't be a fairy. I believe that Jiang Ziya gave up his deity to attract his younger brother.

I watched the Book of God many times when I was a child. At that time, I thought Jiang Ziya really loved Ma Zhao Di. Although he hated the pursuit of horses at first, he was moved by her and married her.

Jiang Ziya later made a promise to Ma, that is, to grow old with Ma and go to a place where no one would disturb him.

Let's look at the initial deification of Jiang Ziya. He left all the positions on the deification list to others, not because he was selfless, but because he didn't want to be deified so much.

He had a chance to deify himself, but he didn't. I think he wants to live on the earth with Ma Zhao Di all his life, but he also has a short happiness.

Even if the gods can become immortals after being sealed, immortals who don't eat human fireworks can only rely on incense and can't get the life they want.