Nice anlalization Nafts. In my opinion some time it is not all the time what you got in life it is how you take and accept what you have ad be positive. In RK's case even he was provided with all the physical comforts mentally he was not happy with it for loosing his dad and loosing his mom in some way even though he did not loose his mother physically but in his mind he lost her so he became bitter towards life. same thing happen with Deepali blackly until he met Madhu he met all the selfish people in life and that is what he learn growing up and that why he behaves some time selfishly because that is what life taught him unless you are possessive you will loose what you have.
Where as for Sultan even though he did not have lot of comforts he was loved by adopted mother he knows the feeling of love and caring that is why even his profusion is a gangster he was never showed aggressive and selfish towards people and he believe in caring and sensitive to words other people as long as e thinks they are good people that is why when he met madhu and saw what she is his feelings for her became caring and friendship and gratitude. That is why people making fun of him saying he is a gangster why he is mushy mushy he should be stronger and ruthless and should not feel for girl he just met. His sensitive feelings towards people is nothing to do with his profusion he believe in relationships that is what we are seeing now in him how he treat his mother.I think the whole point of CV's is to show how people look at things regardless how they grow up they want to show the differences between Sultan and RK from the beginning in their behaviors. They both are completely different personalities and have lot of contrast between them. This why some people like rk ad some like Sultan depend up on how you understood the characterSorry for the essay