Warlocks feel as though they have worked to earn their abilities, studying for years in their art. They don't like how hunters and Titans act so ignorant with their powers. It's in one of the grimoires, the one where the warlock says only his class could kill an ahamkara and a hunter girl takes that as a challenge. The warlock knows that the hunter will fail, because warlocks really are the only ones who knew how to take down an ahamkara. Edit: look at ghost fragment: warlock.