The case for trade is not just monetary, but moral. Economic freedom creates habits of liberty. And habits of liberty create expectations of democracy.
Khomeini obviously had many problems, but he had one clever side to him. He never made economic promises to people and as a result, he never led to dissatisfaction in this perspective. Because they need to get votes, they use misleading slogans. And this leads to rising expectations. I had a personal experience.
RESPITE, n. A suspension of hostilities against a sentenced assassin, to enable the Executive to determine whether the murder may not have been done by the prosecuting attorney. Any break in the continuity of a disagreeable expectation.
So those who wished for some central cosmic purpose for us, or at least our world, or at least our solar system, or at least our galaxy, have been disappointed, progressively disappointed. The universe is not responsive to our ambitious expectations.