It's not a stretch at all when it comes to nuclear weapons. The Iranians are doing exactly what the North Koreans did. The "people, culture, government, and history" are relevant only to the extent to which they played into the government's decision to acquire nuclear weapons.

For me a big difference between North Korea and Iran is the balance of soft vs hard power in those countries. In Iran the ordinary people tend to push back in a lot of ways and the government gives ground if grudgingly and slowly. And there is a lot of politics going on between factions with real power.

Given that I'm willing to be very patient. Seriously, the generals of the Red Army ran the soviet union for 35 years after Stalin died and then they passed on. So too will the Iranian revolutionaries.

While I do think that the Iranian people and culture are as a rule of thumb non militant (with enough material prosperity comes a time when you prefer to trade with someone and not kill him), it is the ruling theocracy that overrides everything else. Until Saudi Arabia and Iran both get their Kemal Ataturk (with less genocide if possible) that enshrines the secularist nature of the countries for a century (sadly Erdogan was allowed to exist, lets hope that this gets fixed soon) they cannot be viewed as a reliable partners.