If (for example) that one struggling colleague is shining in front of a superior and you are the guy who rains on his parade by nitpicking some detail he said, you might be technically right, but you end up being perceived as an asshole because you acted like one.

If if that example you strictly need to be right for some reason, you could also just talk to the guy afterwards etc.

And this is what all of it essentially boils down to: It is good to be right, as long as the way you communicate it is adequate for the situation.

If people have a low effort chit chat and don't want to go too deep into things, it might not be wise to get all excited and monologoue about how everything they know is wrong. If someone shows you something they have been working on for weeks, maybe it is wiser to aknowledge the good things first, before going into the bad things.

Generally it is better to have others discover facts themselves than spitting them out in front of them. Sure, if the boat is literally sinking and they claim punching more holes will help, this might be a good moment for a statement without nuance — but such statements have their time and place and should not be used everywhere.