It is hard to say but I doubt it means a safer more economically stable world. Iran has very advanced missiles and defense systems from Russia and China and could close the Strait of Hormuz effectively cutting off a large part of the world oil supply.
They'd be cutting their own throats if they did. No oil going out means no money coming in. No money means no food. How long would the already distressed Iranian people put up with that state of affairs? Not too long, I'd say.
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To understand the situation in that part of the world you only have to construct a simple thought experiment:
Ask yourself, what would happen if instead of being constantly at each other's throats, the major nations in the region settled their differences, formed a confederation, and turned their oil profits into economic and social development?
How long would it be before you were facing a major industrial competitor with the advantage of huge domestic energy supplies, a skilled work force with relatively low wages, and proximity to major world markets? Then ask yourself how much oil would be left to export once that train started down the tracks.
Now ask yourself, what nation, at one time or another, has supplied everyone in the region with enough weaponry to kill each other off ten time over, and why on earth they would do such a thing?
ebear