Being a junior corporate lawyer is a miserable job. You need to study for 4 years of undergrad, pony up $150-200K for grad school, and then there's a >50% chance you wind up in a low paid job. Then if you do get one of the plum jobs, you are doing 60+ hours a week of grunt work buried under mounds of paperwork.

Why isn't there a shortage of corporate lawyers? Because they pay them very well.

The industry can figure out a way to get people through the system if they really want to. They can find a way to hire military pilots if they really want to.