Self-Wrongness?

While commuting home with a colleague on a crowded MRT train, he pointed out a woman who nudged another middle-aged woman out of her seat for a pregnant lady who just stepped into the train. One stop later, the pregnant lady got off the train and the seat was quickly taken by a foreign worker and the middle-aged woman was left standing unsteadily in the train.

My colleague commented that the woman who nudged the middle-aged woman was simply self-wrongness. Confused, I asked him what that meant. "Well, she thought she was being self-righteous but in actual fact, she is just being 'self-wrongness'. She doesn't own the seat in the first place, so what gives her the right to give it up to someone else?" He went on to explain that we won't know if the middle-aged woman also needed the seat and that those people who took pictures on Stomp! were probably self-wrongness people as well.

Indeed I remember reading from the Bible (Matthew 7:1-2), "Judge not, that ye be not judged. For with what judgment ye judge, ye shall be judged: and with what measure ye mete, it shall be measured to you again." Who are we to say who needs a seat or who doesn't?