The Shah’s power was tainted by foreign intervention: his father's British-backed coup and his own ascension after the British forced his father to abdicate. This narrative of being a foreign puppet permanently undermined his domestic legitimacy and was exploited by his opponents.

The Islamic Revolutionary Guard Corps (IRGC) has eclipsed the clergy, controlling major political and economic institutions. Ayatollah Khamenei maintains power through a symbiotic relationship with the IRGC, leveraging their military and economic might, rather than just religious authority.

In just over 30 years, Tehran's population exploded from 500,000 to nearly 5 million. This rapid, oil-fueled urbanization overwhelmed infrastructure and created a vast, alienated urban class, forming a fertile ground for revolutionary discontent.

Days before Iran's 1978 revolution, President Jimmy Carter lauded the Shah's leadership and Iran's "stability." This highlights a catastrophic failure of intelligence and a reliance on superficial state-level relationships over understanding ground-level dissent.

The Iranian populace is exhausted with theocratic rule after five decades. Any future authoritarian leader will likely be a product of the intelligence or security services, appealing to nationalism rather than revolutionary ideology. The era of the turban-wearing ruler is over.

The Shah's shy, anxious personality, a product of his overbearing military father, made him susceptible to a personality cult. This detachment from reality, coupled with a Westernized worldview, prevented him from understanding the deep-seated grievances of his people.

Ayatollah Khamenei believes that any attempt at reform, like Gorbachev's in the USSR, would accelerate the regime's collapse rather than prolong it. This formative experience informs his rigid refusal to cede ground on core principles like the mandatory hijab, ensuring a brutal response to dissent.

Dara Khosrowshahi theorizes the Shah of Iran's regime collapsed because he modernized too fast, focused excessively on military power over industrial growth, and failed to bring along rural populations and integrate Islam into his vision, creating a power vacuum for the Islamic regime to exploit.

While US sanctions are a factor, the Iranian currency's freefall is largely due to structural corruption. The economy is dominated by the military and clerical foundations, a political-economic model that stifles growth and fuels public anger—a problem sanctions relief alone cannot solve.