The alternatives were that they were enriching well beyond peaceful thresholds primarily for leverage in negotiations, or that they wanted "breakout" capability, so they could build multiple bombs quickly, if they ever chose to. But these alternatives can still be unacceptable from the standpoint of arms control and nuclear nonproliferation.
Iran is one of the top producers or radiopharmaceuticals from highly enriched materials including uranium. This should be unsurprising because Iran has a natural abundance of radioactive isotopes- the background radiation of spots in Iran is extremely high: https://en.wikipedia.org/wiki/Ramsar,_Iran
There are some ridiculous pro-palestine/anti-israel takes out there that says that the politics of the region are more stable when Iran has nuclear weapons.
