Sexual vice has now reached such proportions that it is destroying entire generations, corrupting our youth, and causing them to neglect all forms of… - Ruhollah Khomeini

Tahrīr al-Wasīla vol. 1

Through the political agents they have placed in power over the people, the imperialists have also imposed on us an unjust economic order, and thereby divided our people into two groups: oppressors and oppressed. Hundreds of millions of Muslims are hungry and deprived of all form of health care and education, while minorities comprised of the wealthy and powerful live a life of indulgence, licentiousness, and corruption. The hungry and deprived have constantly struggled to free themselves from the oppression of their plundering overlords, and their struggle continues to this day. But their way is blocked by the ruling minorities and the oppressive governmental structures they head. It is our duty to save the oppressed and deprived... The scholars of Islam have a duty to struggle against all attempts by the oppressors to establish a monopoly over the sources of wealth or to make illicit use of them. They must not allow the masses to remain hungry and deprived while plundering oppressors usurp the sources of wealth and live in opulence. The Commander of the Faithful (upon whom be peace) says: “I have accepted the task of government because God, Exalted and Almighty, has exacted from the scholars of Islam a pledge not to sit silent and idle in the face of the gluttony and plundering of the oppressors, on the one hand, and the hunger and deprivation of the oppressed, on the other.”

If one permits an infidel to continue in his role as a corrupter of the earth, the infidel's moral suffering will be all the worse. If one kills the infidel, and this stops him from perpetrating his misdeeds, his death will be a blessing to him.