If you want to discuss Catholic doctrine, I suggest you ask in another forum — Apologetics maybe? This one is about liturgy.
There is a relationship between what one promises during the liturgy and doctrine.
You have shown little understanding of what you are asking your fiancee to promise you or what Catholic doctrine on marriage is, and this lack of understanding is likely to cause you a lot of grief in future.
Unless you and your fiancee understand what you mean by submission/obedience and your theory is at least somewhat workable, there is no point in making a vow that neither of you actually understands.
Even in the US military (which often gets brought up in these discussions), officers do not promise total obedience to superiors.
Here is the oath:
“I, _____, do solemnly swear (or affirm) that I will support and defend the Constitution of the United States against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same; and that I will obey the orders of the President of the United States and the orders of the officers appointed over me, according to regulations and the Uniform Code of Military Justice. So help me God.”
Note that the officer first of all swears to support and defend the
Constitution and then promises to obey the President and superior officers
according the regulations and the Uniform Code of Military Justice.
history.army.mil/html/faq/oaths.html
The officer does not simply swear total and unquestioning obedience to superiors.