Government ordained

I believe government is ordained by God, Romans 13.1, and as for individuals who are in authority or representatives of the people, they are responsible in that role to govern society justly.  If justice begins to fail, in time Divine judgment will come.  If those in government position do evil, the blame is on them, not God.
I think of Zechariah 1:15 "I am exceedingly angry with the nations at ease; For I was a little angry, And they helped—but with evil intent." When Judah was judged for their evil, idolatry and injustice, through captivity, judgment eventually came on the nations because of their evil treatment of the Jewish people. 

The people that Israel were to go in and drive out were those to be more wicked than they:  “3  "Therefore understand today that the Lord your God [is] He who goes over before you [as] a consuming fire. He will destroy them and bring them down before you; so you shall drive them out and destroy them quickly, as the Lord has said to you.  4  "Do not think in your heart, after the Lord your God has cast them out before you, saying, `Because of my  righteousness  the Lord has brought me in to possess this land'; but [it] [is] because of the wickedness of these nations [that] the Lord is driving them out from before you.  5  "[It] [is] not because of your righteousness  or the uprightness of your heart [that] you go in to possess their land, but because of the wickedness of these nations [that] the Lord your God drives them out from before you, and that He may fulfill the word which the Lord swore to your fathers, to Abraham, Isaac, and Jacob.” Deut9

There comes a point where God judges a people or nation when they practice a certain degree of evil or injustice.  Zechariah says this about Israel as to why they were scattered: “8  Then the word of the Lord came to Zechariah, saying,  9  "Thus says the Lord of hosts:  `Execute true justice,  Show mercy and compassion  Everyone to his brother.  10  Do not oppress the widow or the fatherless,  The alien or the poor.  Let none of you plan evil in his heart  Against his brother.'  11  "But they  refused  to heed, shrugged their shoulders, and stopped their ears so that they could not hear.  12  "Yes, they made their hearts like flint, refusing to hear the law and the words which the Lord of hosts had sent by His Spirit through the former prophets. Thus great wrath came from the Lord of hosts.  13  "Therefore it happened, [that] just as He proclaimed and they would not hear, so they called out and I would not listen," says the Lord of hosts.  14  "But I scattered them with a whirlwind among all the nations which they had not known.” Zech7

I believe the issue of justice not being exercised by governments is why God eventually brings judgment.  That injustice may be represented or evident  in a number of other immoral activities: when the common practice of the people is such that there is blatant immorality taking place, there probably will be injustices not being addressed by the governing authorities.  Sodom and Gomorrah practiced homosexuality, but the judgment was probably due to the injustice not being dealt with by the authority—an injustice that was by means of homosexuality being forced upon people:  “20  And the Lord said, "Because the outcry against Sodom and Gomorrah is great, and because their sin is very grave,  21  "I will go down now and see whether they have done altogether according to the outcry against it that has come to Me; and if not, I will know."  22  Then the men turned away from there and went toward Sodom, but Abraham still stood before the Lord.  23  And Abraham came near and said, "Would You also destroy the  righteous  with the wicked?”  Gen18

Some might believe that countries like the USA are blessed by the number of Christians in it.   That may be true, but I tend to think any country that governs justly will be benefitted in a cause and effect manner.  If the populace is influenced by Christianity, then it will probably have a more just government as to its laws and how they apply.   A nation that has and executes justice is one that can naturally prosper.  That’s not to say that unjust rulers can not prosper for a time while their country is very poor, because those rulers keep the wealth for themselves and do not care about the injustice done among the common people—which the rulers themselves inflict.  One can be a faithful Christian and yet suffer in the country, because of injustice.

There are 2 ways of thinking about society and its burdens.

 One way of thinking is that we need more government intervention in society to help in relieving society’s burdens or providing needs and making life more fair (thus requiring more taxation to pay for government workers and programs to accomplish this).

The other way of thinking is that we need less government intervention in society to help in relieving its burdens and providing needs, but let society through individuals and private organizations work towards relieving those burdens and needs.