You barely graduate from law school and it takes you nine tries before you pass the Bar Exam. You start a practice out of your parents' basement. You print up loads of business cards and spend the bulk of your days chasing ambulances and tracking drunk drivers.
You graduate at the top of your law school class and manage to land one of the coveted big firm jobs in a big city. You make gobs of cash, but you spend the bulk of your 16-hour days sorting through other people's emails to determine if they are "important to the case."
You've been practicing at a firm for several years and have managed to climb the law firm ladder. You're promoted to partner, make even more scrilla, and now you get to call the shots. Other people spend 16 hours sorting through documents while you get to focus your time on bringing in business, communicating with clients, and arguing motions in court.
After years of practice and success, you've gained the reputation as the best trial lawyer in town. You no longer have to worry about bringing in business because the business comes to you. You get to pick your cases and as such, you have a lot more control over your rate of success as a trial lawyer. When other trial lawyers see you, they simultaneously bow at your feet and soil their pants.
The POTUS thinks you're super smart and awesome and you're plopped on the Supreme Court.