A monarch. Not a dictator.

He certainly was a dictator. These 2 are not mutually exclusive.

As always the ones put in place by the west get good PR. There was also nothing wrong with Mobutu or Saddam as long as they did what was asked.

Even Wikipedia (a usually western biased and manipulated source) admits this.

The Pahlavi dynasty—Reza Shah Pahlavi and his son Mohammad Reza Shah Pahlavi—has sometimes been described as a “royal dictatorship”,[2] or “one man rule”,[3] and employed secret police, torture, and executions to stifle political dissent. During Mohammad Reza Shah Pahlavi’s reign, estimates of the number of political prisoners executed vary from less than 100[1] to 300.

What I know from the ‘opposition’ the US supports is that they chose the MEK terrorists. They simply took them of their own terror list since they can be used.

Same as they did with that horrible Jolani and his headchopper barbarians in Syria.