It’s not that one overrules the other. They are all in harmony.LOL! I do not have any problem with Paul! That is what you said, not at all what I said!
I have a problem if someone puts the words and writings of Paul as more authoritative than those of Peter, John, James, or Jesus.
(I do not know if you are guilty of this or not -- but I asked the question and you did not answer my question . . . )
You are right that Paul explains grace in greater details than the other writers - that does not make him more authoritative than their words.
Some people do not want them to be so they can hang on to legal ism at all costs!