Well...depends on how you define "right" and "err".
Since the constitution says the SCOTUS will be the supreme law of the land, that means whatever they say is how it is, right wrong or indifferent.
The SCOTUS is only held to the standards set by the SCOTUS so they're only wrong if they decide that they're wrong.
Just like at home, the wife is only wrong if she says so. Otherwise, I'm just an unreasonble jerk, or some variation thereof.
Your wife sounds familiar.