Movie

I felt like there was a sense of reciprocity in the movie where the nurse helps the man get away from the police.  I think of it as more of a moral reciprocity in the sense that what you give you get. You help someone out you get help in return one day when you need it.  

There can also be a sense of giving in the last movie.  They give their time to help stand up against the government in an attempt to stop them from kicking another family out on the street. They all join together in order to be as "big" as possible in a way to i kind of make the police think twice about coming up.