In corporate life, Is it always better to judge 'whether the person is specking correct'?

Answer 1

First, "speaking correctly".

Yes, poor speaking will turn off listeners.
Correct and accurate speaking conveys knowledge.

Not sure what you mean by, "Is it always better to judge".
Better than what? One will be judged, as above.

Answer 2

Yes it always better to judge that will surely help u out.