I thought I hated one of my lecturers, he seemed like he thought too much of himself as an academic, morally superior or whatever, and he has been cold to me a couple of times. I looked at his twitter and he retweeted some pro palestine shit and one related to RATM so I guess you shouldn't really judge a book by its cover eh?
even if it isn't much this is a start, I don't think he's a hardcore Marxist or whatever but even by retweeting this shit in the imperial core he is risking his job, which is a huge start.
Academics in general often give off an arrogant air, due to a range of factors including their positions as experts in their subjects, and particularly because of the preexisting power structures in academia.
My godlessparents are former academics and my godlessmother in particular now has an air of confidence that's easy to mistake for arrogance, that she had to develop as a defence mechanism for dealing with other academics. She was a scratty argumentative tomboy from an insignificant town on the coast, and has now become a Lady of means and graces just from stupid office power politics.