Inheritance in the Kingdom of God is based on God's sovereign election (see below), not on human merit of any kind (Eph. 2:8-10). It is not based upon one earning a Ph.D., but to all that is given (John 6:37, 44, 65; 17:9, 22, 24; Rom. 8:29-30) to Praise Him Daily (cf. John 4:24).
James' point here is that in general the poor are spiritually advantaged. Jesus chose to be born to Mary, a poor woman. Though he came from the Main Street, he was not born on one. Though he came from the Mansion of Heaven, he was the 'son' of a mere carpenter. When Jesus began his ministry he said, "The Spirit of the Lord is on me, because he has anointed me to preach good news to the poor. He has sent me to proclaim freedom for the prisoners and recovery of sight for the blind, to release the oppressed, to proclaim the year of the Lord's favor" (Luke 4:18-19 cf. Isa. 61:1-2). At the beginning of the Sermon on the Mount, Jesus began with a declaration of the character of those in the Kingdom. He said, "Blessed are the poor in spirit, for theirs is the kingdom of heaven" (Matt. 5:3). Luke phrases it as, "Blessed are you who are poor, for yours is the kingdom of God" (Luke 6:20; compare Luke 6:24).
So, scripture reveals that God shows special attention to those who are weak and lowly according to human standards. He often chose his people from among the ranks of the poor in order to display the glory of his power to save (Luke 6:20; 1 Cor. 1:28-29). Poole states, "Not that God hath chosen all the poor in the world, but his choice is chiefly of them, 1 Cor 1:26, 28. Poor he means in the things "of this world," and in the esteem of worldly men; they are opposed to those that Paul calls "rich in this world," 1 Tim. 6:17, 18." Just as true religion pays attention to widows and orphans (Jas. 1:27), it also runs contrary to showing favoritism toward the rich.
In the upside down economy of his kingdom, God makes the poor rich in faith and to be heirs of the kingdom. As Jesus said in the Sermon on the Mount, “the meek shall inherit the earth” and the poor will possess “the kingdom of heaven” (Matt. 5:3, 5). Earthly riches cannot curry favor with God, because He accepts no bribes. His favor rests solely on those who seek his wisdom. The church would be wise to seek God’s favor, instead of the favor of the rich who often oppress the poor.