"Jesus said to them, 'Those who are well have no need of a physician, but those who are sick; I have not come to call the righteous, but sinners to repentance."
Jesus came to call sinners to repentance. First, there was the need for a ransom to be paid for sinners to be redeemed. Then, there should be a successful call to sinners. The call is based on the ransom. And Jesus says he came for both of these things.
Jesus does not leave others to pay the ransom or call us to repent. He Himself was born to pay the ransom. He Himself calls us to repent. Even today, Jesus keeps calling us through the Bible and through the preaching of the Bible.