Plenty of software companies make a lot of money selling to lawyers. Clio (https://www.clio.com/), for instance, is a SaaS that helps lawyers run their practices better. It doesn't try to replace lawyers; it just saves them time on the bullshit of running a firm. Kira (https://kirasystems.com/) automates due diligence, which is a labor-intensive (and hence costly) process that nobody loves doing, but which does generate a lot of billable hours for paralegals and support staff.