Brain surgeons gets sued and you get a public paper trail when they do a bad job. Also they often have a lot of data of all their performed surgeries they can refer to. Software engineers however fails silently and nobody will know. Lawyers, the other big profession that are paid a lot, also have a lot of data they can go by to prove that they deliver value.

Can you give a single profession that pays $200k+, isn't a manger job, doesn't have easily tracked metrics like doctor/lawyer, and doesn't have tests like the algorithm interview?

Actuaries?

If the suggestion is that we change our field to be more like the medical profession, I'll just say I'm thankful you're not in charge.

What if the accreditation for this industry is simply do the existing LC exam, except once you pass it you're good for 5-10 years until you renew your license? Instead of the current system of having to retake it every single time you change jobs.