Not anywhere near as important as making sure Constitutional rights and the Constitution are protected. The SCOTUS ruling upholding all the various State and fed bureaucratic nitpicking laws are clearly unconstitutional, yet SCOTUS ruled contrary to that. Stare decisis is only as good as what it protects!
Like so many things, good in principle, possibly corrupt in practice. In any event, not a principle worthy of hanging ones ultimate fate on.
Nothing in law is clear.