Hi Biahi
When they are self righteous they do not consider there is anything wrong with them. They aren't sinners who need a mediator.
(Luke 5:30-32) . . .At this the Pharisees and their scribes began murmuring to his disciples, saying: “Why is it you eat and drink with tax collectors and sinners?” In reply Jesus said to them: “Those who are healthy do not need a physician, but those who are ailing do. I have come to call, not righteous persons, but sinners to repentance.”
(Luke 7:41-50) 41 “Two men were debtors to a certain lender; the one was in debt for five hundred de‧nar′i‧i, but the other for fifty. When they did not have anything with which to pay back, he freely forgave them both. Therefore, which of them will love him the more?” In answer Simon said: “I suppose it is the one to whom he freely forgave the more.” He said to him: “You judged correctly.” With that he turned to the woman and said to Simon: “Do you behold this woman? I entered into your house; you gave me no water for my feet. But this woman wet my feet with her tears and wiped them off with her hair. You gave me no kiss; but this woman, from the hour that I came in, did not leave off tenderly kissing my feet. You did not grease my head with oil; but this woman greased my feet with perfumed oil. By virtue of this, I tell you, her sins, many though they are, are forgiven, because she loved much; but he who is forgiven little, loves little.” Then he said to her: “Your sins are forgiven.” At this those reclining at the table with him started to say within themselves: “Who is this man who even forgives sins?” But he said to the woman: “Your faith has saved you; go your way in peace.. . .