Charity and giving extends the Kingdom of God

Julian the Apostate, the Emperor of Rome

Free markets, individual enterprise, personal responsibility are all good things. Capitalism is a great system that has served mankind well. We owe a considerable amount of our progress to its ability to allocate resources efficiently. In God's economy, there is a fail-safe against Capitalism's principal systemic weakness: wealth tends to concentrate amongst an elite minority. That failsafe is giving. When we give and lend to others in need, with no judgement  attached (Exodus 22:25; Leviticus 25:35) then we bless our neighbours and its power reveals an aspect of the kingdom of God and indeed an aspect of his heart that Capitalism cannot. Mercy has a magnetic quality that draws people to God.

Psalm 116:5–7 (NKJV)
Gracious is the LORD, and righteous; Yes, our God is merciful.
The LORD preserves the simple; I was brought low, and He saved me.
Return to your rest, O my soul, For the LORD has dealt bountifully with you.

When it applied to those yet to profess their allegiance to the God of Abraham, Isaac and Jacob,  it was a major influence on Roman society as it encountered the Early church at a time when it was indistinguishable from Judaism:

The impact of this ministry of mercy upon pagans is revealed in the observation of one of Christianity’s worst enemies, the apostate Emperor Julian (332–63). In his day Julian was finding it more difficult than he had expected to put new life into the traditional Roman religion. He wanted to set aside Christianity and bring back the ancient faith, but he saw clearly the drawing power of Christian love in practice: “Atheism (i.e. Christian faith) has been specially advanced through the loving service rendered to strangers, and through their care for the burial of the dead. It is a scandal that there is not a single Jew who is a beggar, and that the godless Galileans care not only for their own poor but for ours as well; while those who belong to us look in vain for the help that we should render them.”

Shelley, B. L. (1995). Church history in plain language (Updated 2nd ed.) (35–36). Dallas, Tex.: Word Pub.