I hope that I am spending the rest of my life trying to be righteous, not trying to prove anything.Why do we accept that we're terrible, unworthy sinners when we accept Christ, then spend the rest of our lives trying to prove we're righteous?
That being said, every family member is called to help others to strive towards righteousness which, at time, involves what some may call "judgment." Done correctly, with the proper attitude and having already dealt with oneself, it is not only acceptable, but encouraged.