I'm starting to see Dunn letting Chalky twist in the wind. The Dr is one of the best villains I've seen. I love the articulate, intellectual villains. The dialogue in this episode was superb. Some of the best exchanges in the series since the era of Darmondy.
Chalky: I heard he had some doings in Newark. Go ask out there
DR: It would be a waste of time.
Chalky: You're wasting it now
The reason why I think the Dr belittles Chalky is because he lied and puts up a false image of a man in control. Nucky doesn't lie but tries to amend the situation instead of ignoring it like Chalky does.
Dr: this man is your friend?
Chalky: what's wrong with that?!?
Dr: nothing is wrong if you see nothing wrong in it