Sanctions against Iran play an important and justified geopolitical role. Iran has been a complete menace to the Middle East by propping their proxies and de-facto taking over at least 5 different countries and serving as one of the supporting pillars for Russia in its war. We have not seen the last of this war, too early to call the results. Trump is not backing down and we may see a Venezuela like situation at the end which would have massive geopolitical implications (of course there are other much less favorable outcomes too).