These Ahadiths and Quranic verses are about Oppressors and the one who is Oppressed.
The oppressor could be a leader, husband, king of the occupied state or anyone who oppresses others in any circumstance.
These Ahadiths and Quranic verses are about reward which the oppressed will get and the punishment which oppressors will get.
Narrated Ibn ‘Abbas (R.A):
The Prophet (pbuh) sent Mu’adh to Yemen and said, “Be afraid, from the curse of the oppressed as there is no screen between his invocation and Allah.” Volume 3, Book 43, Number 628: Sahih Bukhari.
Narrated Abu Huraira (R.A):
Allah’s Apostle (pbuh) said, “Whoever has oppressed another person concerning his reputation or anything else, he should beg him to forgive him before the Day of Resurrection when there will be no money (to compensate for wrong deeds), but if he has good deeds, those good deeds will be taken from him according to his oppression which he has done, and if he has no good deeds, the sins of the oppressed person will be loaded on him.”Volume 3, Book 43, Number 629: Sahih Bukhari.
We will reserve the houses of the hereafter exclusively for those who do not seek self-glory in this life and do not cause oppression and corruption to spread. The final outcome belongs to those who fear (Allah). [028:083: Al Quran]
Say, “In fact, my Lord has forbidden all kinds of lewd and obscene acts whether committed openly or in secret: (all sorts of) sins and wrongful oppressions, associating anything (or anyone) with Allah for which He has revealed no sanction, and attributing to Allah that about which you know nothing.” [007:033: Al Quran]
And what is wrong with you that you fight not in the Cause of Allâh, and for those weak, illtreated and oppressed among men, women, and children, whose cry is: “Our Lord! Rescue us from this town whose people are oppressors; and raise for us from You one who will protect, and raise for us from You one who will help.” [004:075: Al Quran]
Narrated Abu Said Al-Khudri (R.A):
Allah’s Apostle (pbuh) said, “When the believers pass safely over (the bridge across) Hell, they will be stopped at a bridge in between Hell and Paradise where they will retaliate upon each other for the injustices done among them in the world, and when they get purified of all their sins, they will be admitted into Paradise. By Him in Whose Hands the life of Muhammad is everybody will recognize his dwelling in Paradise better than he recognizes his dwelling in this world.” Volume 3, Book 43, Number 620: Sahih Bukhari.
Narrated ‘Abdullah bin Umar (R.A):
Allah’s Apostle (pbuh) said, “A Muslim is a brother of another Muslim, so he should not oppress him, nor should he hand him over to an oppressor. Whoever fulfilled the needs of his brother, Allah will fulfill his needs; whoever brought his (Muslim) brother out of a discomfort, Allah will bring him out of the discomforts of the Day of Resurrection, and whoever screened a Muslim, Allah will screen him on the Day of Resurrection.” Volume 3, Book 43, Number 622: Sahih Bukhari.
Narrated Anas bin Malik (R.A):
Allah’s Apostle (pbuh) said, “Help your brother, whether he is an oppressor or he is an oppressed one.” Volume 3, Book 43, Number 623:Sahih Bukhari.
Narrated Anas (R.A):
Allah’s Apostle (pbuh) said, “Help your brother, whether he is an oppressor or he is an oppressed one. People asked, “O Allah’s Apostle! It is all right to help him if he is oppressed, but how should we help him if he is an oppressor?” The Prophet said, “By preventing him from oppressing others.” Volume 3, Book 43, Number 624:Sahih Bukhari.
Allah knows the Best.