In the end, we are likely to be punished for our kindnesses.
As far as the movie is concerned, this is merely a bridge in the conversation between two characters. However hidden in there is a pithy summary of the effect that random acts of kindness (not selflessness) have.
This statement asserts that the most likley outcome for ourselves of any kindness on our part is a negative one. Should you find youself in a situation doing some act of kindness, the universe will notice (in as much as the universe notes anything) and it will return upon you some sort of retribution for having interfered with the natural order of things.