probably only peoples who has the gift of doubt can argue in the common search of knowledge. Everything else, right or wrong, are, as stated, more about ego, quite useless about real problem solving..

Sure no one like to be wrong, so to argue with is necessary to spark interest in the search of alternative point of view.

Remembering Hagakure: "To give a person an opinion one must first judge well whether that person is of the disposition to receive it or not. One must become close with him and make sure that he continually trusts one's word." ..... "Have him receive this in the way that a man would drink water when his throat is dry, and it will be an opinion that will correct faults."

Words from a more civilized ages.