Reza won't have a chance after 50 years, too late, too sad. He would had a chance the first 5 years, but the West wanted it that way.
The "first 5 years" after what? He was a kid in college when his father, the last Shah, died. And yes, I think it'd be fair to say he's missed his opportunity. But that happens to lots of people who don't anticipate inheriting the Peacock Throne.
It seems to me the Iranians need to decide what THEY want, and then do something about that. Some do manage it, though it can be very hard. But for most of the past almost 50 years, the Iranians haven't even tried, really.