Why do we need a "build-up" for anything now?
Did Pepper needed some origin-thing too?
From CEO to super-heroine.
The shock value was good enough.
Once i saw her, protected by the armor in the house's destruction, i thought: cool, the "Rescuer thing" could be like that.
That type of role?
It's called "contrast"!
The bigger, the more efficient.
(well, still in the credibility-zone, of course!)