On /pol/ and in various news and even here I've seen people mock Russia for "not defending Iran" or assisting it militarily (directly). This is such a childish understanding of world economy that it's no wonder that Trump has deluded himself into believe it too. Russia IS busy with its own shit, but that's not WHY it's staying out of it. For all intents and purposes this war is to Russia's benefit, particularly economically and politically.
>1) Oil. Iran's strangling of the Hormuz, the strikes on various oil refineries and storage as well as in Yemen have disrupted Middle Eastern Oil Export. Iran's export dropped and so has the other nations, which means that importing countries like Europe are going to have an energy crisis. Even China, which relies a decent amount on Iranian oil supplies will be affected. This means that Russian oil becomes much more valuable and a more significant lever for pressuring the West while increasing money in the treasury.
>2) Political Influence and high-groundThe USA is rapidly going mask off and destabilizing the shaky solidarity of the Western bloc*** with its activity as well as the faith the Middle Eastern Nations like Saudia Arabia have in it, this gives potential opportunities for Russia to gain political support. This is especially true due to Iranian civilian casualties, the assassination of the leadership of Iran and attacking it amidst diplomatic discussion as a way to browbeat them into complying with demands. The inability to fully defend airspace from incoming missiles is also a hit to US military prowess.
>3) Military ExpenditureBoth sides are using immense numbers of weapons. The US announced that it deployed 50,000 troops, 200+ strike fighters and other forces. Already at least four Billion dollar THAAD systems have been eliminated by Iran*, as well as structural damage to several military bases and airfields, several sunken and damaged ships, shot down 3 F-15Es of the latest model and more including reports from Iran striking a USN Destroyer* in just 4 days of war, not to mention large numbers of missiles and bombs being expended. As of posting, CENTCOM has claimed to have struck 2000 Iranian targets, that's at least 2000 munitions, and usually several missiles are expended on a single large target. Iran is suffering heavy losses as well, 17 ships sunk or damaged so far, mostly struck in port while the IRIS Dana was sunk by submarine, 2 Su-24s shot down, 2 F5s and an F4 destroyed on the ground as well as 2 Su-22s hit on the ground. Numerous missile launchers have been destroyed and while the main bases buried deep underground in the mountains are safe, that's still a significant loss of equipment. This means that Russia has a large potential market in Iran for its arms exports and a lot more leverage to do so. Especially as local and Chinese air-defenses are struggling to keep up. The War also gives Russian and Chinese ISR an opportunity to gather data on US capabilities and prepare accordingly.
Furthermore Iran is safe from any actual regime change at the moment, besides the broader theocratic fury over Khomeini the school and the deaths there from the first day of the war is not going to be forgotten. The Kurds glowies are talking to in North-West Iran and Iraq are small guerilla forces posing no issue for Iran's military**. Iran may not be the best, but it's ground forces are well armed experienced with anti-armor operations. I do not think this is a situation like the First Gulf War where Saddam's forces, worn out from the Iran-Iraq War and with heavily outdated weapons were knocked back by the American coalition. It's definitely not comparable to the Second War where Iraq basically had no organized military. Yet in both wars US ground losses were pretty high, despite propaganda and classifying of data to hide them. American ground forces haven't fought a large scale war like in Iraq in nearly 2 decades, the veterans of those conflicts retired and struggle to acquire the welfare they were promised.
Honestly I'm more worried for Cuba.
TL;DR: The war is strangling Middle Eastern Oil, giving the market to Russia. The USA is destabilizing the world with potential diplomatic fall out. The military expenditure on both sides means a weakened American military in the short-run, causing support for Ukraine and Taiwan to falter and Iran becomes an even bigger customer for Russian arms. There is no way Iran will fall without a ground war and the USA would need to commit everything but a kitchen sink for it, which they can't afford; China is waiting to strike back and Ukraine would surrender in a week if American weapons and ISR stopped flowing in. So as a trade partner and friendly country Iran is safe.
*
https://archive.ph/Luz7W ,
https://archive.ph/5UBtP ,
https://archive.ph/Wg6Hz ,
https://archive.ph/dWOXa ,
https://archive.ph/HqiRQ , (PAC 2s are being used because PAC 3s have run out)
https://archive.ph/3lgtN ,
**
https://archive.ph/4bbU8 ,
https://archive.ph/yrGdc ***
https://archive.ph/dw10q