Uh, no it isn't. Roe v Wade is a Supreme Court case. It has little to do with the term "rule of law" which is a philosophical/political concept.
It is no wonder that a 5th grade dropout like yourself confuses these things.
Its a case that makes Abortion legal. Which means rule of law is that Abortion is now legal for citizens.
I know you are stupid, and like to show off how stupid you are, but seriously you are wrong....like usual.
You know just like there may not be separation of church in state in the constitution, but case law makes it basically so government can not promote one religion over another.