It's probably not so much an ego, but someone who just goes about his business and does what he's asked to do on paper
Remember we had Halladay, and we heard the same kind of vibes when Ricky Romero talked about Halladay. Not sociable, not really someone that would talk to the young guys. Just stay out of his way.
I think people are easier to criticize Dickey because he hasn't been THE ace