Some Biglaw associates assume that the only reason an attorney becomes a solo or joins a small firm out of law school is because he didn’t have any other options. As they become slightly more senior, and the ranks thin, some Biglaw associates assume that those who leave simply couldn’t hack it and only the elite remain.
Lawyers tend to be insecure overachievers, making this group psychology incredibly powerful and enabling young attorneys to rationalize many of the more unpleasant aspects of a job which demands so much of their time, often under unpleasant circumstances.

From Biglaw to Boutique: Greener Grass