I consider myself pretty competitive. I'm in a top 5 CS PhD program, have published several first author conference papers in top-tier conferences in my field, and I consider computer science to be a big part of my identity.

That being said, I feel that I have a pretty good grasp on "academic competitiveness" and can distinguish that from what I'm describing above (which I'm calling "computer science personality disorder"). It truly is a behavior that appears unique to our field and I feel that it drives a lot of smart, collaborative, and supportive people to leave.