Matthew in Greek is Maththios, which means 'gift of god'. Categorizing the 12 disciples, he would be the lowest of the low. Why? He was a tax collector. Even fishermen were more valued than tax collectors. Matthew was said to have had a post near or in the fishing village, where he collected taxes from those exporting and importing fish through Capernaum. He was considered a dishonest man because many tax collectors had affiliations to Romans officials. It is believed Levi (Mark 2:14) had his name changed by Jesus to Matthew.
Mark 2:14 says, "And as he passed by, he saw Levi the son of Alphaeus sitting at the tax booth, and he said to him, “Follow me.” And he rose and followed him." I recall struggling to answer the call in my life, but my man Matthew did it cold turkey. If anyone ever wondered how powerful is efficacious grace, well it is so powerful it will turn the heart of a sinner immediately. It will cause you to leave everything without force, but willingly and cheerfully. Matthew became Jesus' record keeper and best of all, God used every skill Matthew perfected to now serve Him by recording the greatest event in Christiandom. He was living out his name, the "gift of God". God comes to change our heart, permanently.
Jesus doesn't really care what others think about a person, or how others value a person. He would not withdraw his love even from the lowly, which makes the grace of Christ the more illustrious and distinguishing. He loves the outcasts and the unloved. Stop concentrating on polishing yourself up for God. We are already deemed righteous despite our flaws. So leave the polishing for God.