So are you actually admitting that there are correct and/or incorrect opinions ... or ... you are more interested in outcomes?
Not quite sure where you are leading.
However, all of the above. Correct/incorrect refers to factual basis for an opinion, in which case some are correct, others incorrect.
If an opinion is a value judgement, rather than a point of fact, then correct/incorrect is not the consideration, rather reasonableness and, to a large extent, that involves peer review.
.. and we should all have a directed interest in outcomes as those are what gets us to the other aerodrome in one piece or find us scattered about the hillside.