There is a reason this is the last scene in which Okoye appears before the credits roll. It speaks volumes about the power black women possess. Seeing anyone, let alone a black man, submit to a black woman on screen in this way is a rarity.
Gurira thinks the message in that scene is vital for everyone, especially women and girls.
“You expect to use your love for me and our love for each other to actually get me to betray my nation, and I would kill you first. I love that,” she said. “I think women don’t often get to portray that sort of nobility and that sort of integrity, especially [choosing that] over their love.” – Danai Gurira on The Scene™
It’s a very Male trope, the Hero (or side character) turning away from the Wicked Seductress to Uphold The True King and to see a woman have that arc is honestly amazing and revolutionary