Well Jason was the punk kid who stole the wheels off the Bat mobile, who had anger issues that lead to him not being well received by Batman or fans, hence the hotline death sentence. Damian was a kid Bruce didn't know about who trained with the League of Assassins who doesn't have anger issues, he just thinks he deserves to be the heir of Batman despite the man not raising him up until this point. 

I just got no use for punks who think the world owes them something. 

~KL~