The majority of legal work involves clerks doing paperwork and research to locate precedents etc which is all automatable (and is going online rapidly), things that require an actual lawyer and a face to face meeting, or a court room, is the minority.

The same applies to accounting. So much of that is very well defined and the rules very well known, more and more of the clerical side of accounting (which is a huge percentage of the job) is going online and automated. There is certainly a moderate amount which is much more complex and requires human intervention, but its still a minority of the work.