I don't know what others understood , might be differences between rich and poor etc., and a poor boy trying to making his fortunes with a crime, though he tries justifies everything. It also gives another message , that unlike Raj Kumar character, a poor one who is trying to be honest should not be trusted, one could get killed. I didn't like the movie, this way of justifying everything gives few new stories but not good messages . Ahh any way the movie is almost similar to Parasite .