Social inequalities include income inequalities among individuals in society. There're plenty of poverty reduction/eradication or wealth redistribution schemes & full on economic systems like socialism intended to nullify or eliminate income inequality among people.
The premise behind all of these is that social inequalities are man-made and can be essentially eliminated to bring about a broad scale equality among the masses. Basically to abolish poverty. This is contrary to the Qur'an. Let's see what the verses state.
Why Poverty & Social Inequality Are Inevitable
34:36. Say, "My Lord spreads out His bounty to whomever He wills, or restricts it; but most people do not know."
53:48. And that it is He who enriches and impoverishes.
2:155. We will certainly test you with some fear and hunger, and some loss of possessions and lives and crops. But give good news to the steadfast.
16:71. God has favored some of you over others in livelihood. Those who are favored would not give their properties to their servants, to the extent of making them partners in it. Will they then renounce God's blessings?
4:32. Do not covet what God has given to some of you in preference to others. For men is a share of what they have earned, and for women is a share of what they have earned. And ask God of his bounty. God has knowledge of everything.
What we learn from these verses is that the socio-economic utopia of equality in inevitable. Am not saying we shouldn't help the poor & underprivileged. Am saying there will always be poor & underprivileged folks, and the cause may not be laziness of the poor or some unfair advantage that the rich benefit from.
Some people however say that, they are not concerned about existence of poverty or inequality on an individual level, but on a group or demographic level. They want to even out the wealth or poverty rate between genders, race, or ethnicity.
But the Qur'an confirms that not just individuals, certain groups like nations & communities may be preferred & blessed above others. For instance;
17:70. We have honored the Children of Adam, and carried them on land and sea, and provided them with good things, and greatly favored them over many of those We created.
Does the "Children of Israel" apply to modern Jews? Am not so sure, but one thing I can admit is that despite being a very tiny proportion of human population, Jews are a very powerful group & have contributed a lot to modern science than some larger non-Jewish demographics.
3:55. God said, "O Jesus, I am terminating your life, and raising you to Me, and clearing you of those who disbelieve. And I will make those who follow you superior to those who disbelieve, until the Day of Resurrection.
61:14. O you who believe! Be supporters of God, as Jesus son of Mary said to the disciples, "Who are my supporters towards God?" The disciples said, "We are God's supporters." So a group of the Children of Israel believed, while another group disbelieved. We supported those who believed against their foe, so they became dominant.