Malik and Dipali
For Dipali I felt though she injured him, he can probably see she is not happy in her chosen life, she failed in her sojourn into Bollywood with Sikki both, they marriage is not a happy one and she's drinking heavily, vodka, whiskey that's the only way she manages to cope to stay in that house with Sikki and his father. So perhaps he feels he doesn't have to do anything to her her choice was the wrong one and she's paying for that choice.
Also I was discussing this the other day with other forum members and we concluded that Dipali is not worth to be an enemy, she plays her hurtful game and quickly reveals her trump card and is gloating and excited without considering the opponent she is playing against is strong and shrug off her assault and come up trumps against her the very next day, without even gloating. So in RK's mind a person that has not considered how her prey can get out from under her when she is hunting him is not worthy. Madhu on the other hand when they've had a confrontation with the slaps, even if he married her in an incomplete marriage infront of witnesses those set people will still think, they are a conflicting couple and Madhu slaps hims around whenever she wishes. đđ and the fight about God, she revealed in front of the family he did two things stopping the akinjot lamp from extinguishing and eating Vegetable kebabs acceptable to god, so he does fear god and recognises he is a human being and not god. Both times RK was left with no proper reply to her assault, so she is worthy and Dipali isn't.
In Maliks case we can say it's because he was trying to get Madhu to believe he loves her thats why he didn't go ahead with the case on him and have him imprisoned or we could apply the same as above RK saw Malik failing in all attempts to fulfil his goal, first to replace the honour of his daughter by beating up the guy that hurt her, RK even said in the hospital to him that you are strong in body to be a stuntman but in mind you are like a child to Malik, because he attacked when RK had all his entourage around to protect him, similarly the later attempts didn't succeed the shot would have however Sherni Madhu was there to save the day, the rest of the attempts hunting knife (again Sherni was there) and ice dagger again didn't succeed. So again not worthy opponent.
But at the fake wedding RK arranged for Madhu RK said to Madhu that she was a fool to allow herself to fall in love with him forgetting their beginning, so you see his telling her of his disappointed she proved to be like all the others to be defeated by him, now because he reached his intended goal he was gloating too. But he may prove to be like Dipali himself because now he has gotten used to having Madhu around him, he habituated to her tea, probably the taste of her food, he is unable to sleep, his also dreaming she is still around him, therefore the revenge game also affected him, he is not unchanged his fallen in love with his prey. So his a fool also like Dipali not to have considered that would happen to him when he started this Love pretence. đ
The clever one is actually Madhu because she doesn't play games with people, if you don't set out to hurt anyone in life, and people hurt you, you just learn from the experience and move one becoming a stronger person.