Why was the Iranian Islamic Revolution a reaction to Western values and influence?

Iran: Religious Revivalism and the Rejection of the West. The Iranian Revolution directed by Ayatollah Khomeini presented a fundamental challenge to the existing world order. The movements called for a return to a golden past age, and were directed against Western-backed governments. Khomeini claimed divine inspiration and sought to establish a state based on Islamic precepts. Each wanted to spread his movement to wider regions.

Khomeini succeeded because of circumstances unique to Iran, a nation not formally colonized, but divided into British and Russian spheres of interest. Iran thus lacked colonial bureaucratic and communications infrastructures as well as a large Western-educated middle class. Modernization policies, supported by Iran's oil wealth, were imposed by the regime of the Pahlavi shahs. Advances resulted, but the majority of Iranians were alienated. The shah's authoritarian rule offended the middle class; his ignoring of Islamic conventions roused religious leaders influential with the mass of the people.

Favouritism to foreign investors and a few Iranian entrepreneurs angered bazaar merchants. Landholders were affronted by incomplete land reform schemes that did not much benefit the rural poor. Urban workers at first secured benefits, but then suffered from an economic slump. The military were neglected. When revolution came in 1978, the shah was without support and left Iran. Khomeini then carried through radical reform. Religious figures took over leadership and suppressed all opposition. Strict implementation of Islamic law began and women's opportunities were restricted.