It’s about the political pecking order at a company.
If you’re working at a law firm, non-attorneys are often a lesser stratum of human. Likewise, engineers in some engineering company will see IT people as pretenders to the engineering throne.
Some people gain joy in finding creative ways to be assholes. It’s just how humans are wired.
And certainly at least Big Law (at least up to the point where you become a real rainmaker--which you probably won't make without the other things) has a lot of fixation on schools, law review, and clerkships.
If you’re working at a law firm, non-attorneys are often a lesser stratum of human. Likewise, engineers in some engineering company will see IT people as pretenders to the engineering throne.
Some people gain joy in finding creative ways to be assholes. It’s just how humans are wired.