Edit for confusion: I was wondering how the differences between the cultures of the Hellenistic Eastern Mediterranean and the iron age Western Europe affect the subsequent legacy/consequences of the Roman integration in those two areas. i.e. Wider ranging consequences in the West than the East?
Can you specify a bit? As written it seems like you're comparing apples and oranges. Hellenism was a culture, and the Iron Age was a technological characterization. And you're asking how the differences between those affect the consequences of a subsequent cultural wave?