I was a student member of the IMechE. I left when I realized they looked out for engineering employers, the government and actual engineers a very, very distant third.

You don't go to jail for practicing programming or computer science if you aren't "accredited" by the ACM.

Try practicing medicine without a medical license.

If the ACM or IEEE had their way, you would.

Which, frankly, would be approximately ridiculous. Even shitty code creates enormous value, and the industries where it matters have already extended their regulations to cover software development.