You ought to finish. It would look bad on a resume. BTW - Not every lawyer works 80+ hours a week. Just some of us!!
There are many different types of practicing law. You say you wanted to be a litigator, but wanted to spend all your time in court. Well what about becoming a District Attorney? Big court time, good work and experience, law is mostly settled (so not as much research), just a thought.
Depending on what type of work interests you, a law degree will only help. Yes, you can say you didn't want to practice, but the experience of law school taught me how to analyize and break down complex problems, applying the rules to the facts. This type of analysis is required in every industry.