In my experience, people who seem unable or unwilling to listen with curiosity  are constrained by one or more of the following traits:

* Their mind is elsewhere. They are distracted or preoccupied and not really committed to having a conversation or exchange of ideas.
* They are not interested in the topic.
* They lack empathy and/or a belief that others might have important or useful perspectives or information. 
* They have already decided what the other person or people think or will say and are too impatient or arrogant to see if their presumption is correct.
* They are too arrogant and self-assured to consider that they might learn or gain from listening to perspectives other than their own.
* They are too insecure to risk listening to perspectives other than their own, for fear they will find themselves wrong. They often interpet a different perspective as an attack, on their perspective or on themself as a person. To the extent that they listen, it is only to find fault with or weaknesses within what others say as they prepare a rebuttal and a defense of their own perspective.

While I find the pattern of non-listening to be irritating and a reason to avoid (when possible) interactions with such people, I see them as more deserving of pity than anger. Their lack of curiosity greatly limits them but does me no harm.