This really depends on the company’s culture…

If you know someone is wrong and let the company gets trouble because your value of respect comes next to your value of achieving rather than “with”, a self manage company or meritocratic one may just recognize that as a weakness as like you are standing aside of your responsibilities as an expert, and maybe even a lack of trust into your manager to be an adult person being able to deal with disagreement.

It doesn’t mean they “have” to do anything about you telling them they are wrong, developers and technical matters son’t always come first, but that they are enabling to get feedback from all stakeholders, developers included.

It’s merely impossible for a good manager to keep up with everyone’s field of expertise while growing it’s own career as a manager, they will need clear input on technical challenges that falls out of their control and understanding.

When the marine cadets think they spot an iceberg, the captain don’t flail them for raising their voice to save the ship.

I would agree a manager cannot be wrong on the statement that they cannot be right and it’s not their job to be.

I would also agree a developer shouldn’t tell anyone to be wrong before actually to figure out a better solution or had at least made the issue clear.