Upon further investigation into the Robots Cinematic Universe, I came across this: a "Meet the Cast" type deal, where we read information about each robot that starred in the movie.
Here is Cappy's:
First of all: avoiding Ratchet? What kind of hobby is that? Who LIKES avoiding things?
Secondly: we hear no mention of her parents in the movie. The creators just slap this backstory in there for shits and giggles.
Being a Bigweld executive could've helped at any other point in the movie, except she uses her power as such a total of zero times.
It's not like being an executive got her into Ratchet's office when Rodney needed to be in there, because Bigweld did that for him.