Doctors, lawyers, and engineers have other forces regulating their competence. In addition to licensing, they also bear personal liability for malpractice. As a result, malpractice claims that stick in those fields is significant news because it's relatively uncommon.

If it were possible to sue a software developer to recover their salary and for damages done, you'd better believe that nearly all (though not all) of the people who are rather less than qualified would be out of the profession.