The apostle Paul sets us straight on God's recruitment policy when he writes:
For consider your calling, brothers: not many of you were wise according to worldly standards, not many were powerful, not many were of noble birth. But God chose what is foolish in the world to shame the wise; God chose what is weak in the world to shame the strong; God chose what is low and despised in the world, even things that are not, to bring to nothing things that are, so that no human being might boast in the presence of God. And because of him you are in Christ Jesus, who became to us wisdom from God, righteousness and sanctification and redemption, so that, as it is written,“Let the one who boasts, boast in the Lord.” (1 Corinthians 1:26-31 ESV)
It’s a good thing when Jesus calls a sinner to Himself He's not a Marine. Thank God for the Son and His cross.