"Because part of the process of saying that something is wrong is being willing to learn that maybe you are the wrong one."
So, yeah, I don't see a conflict on thinking something is wrong, pointing it out, and arguing for change, and at the same time be open to be convinced that it wasn't, in fact, wrong.
Saying that something is wrong doesn't imply (at least for me) that you're 100% sure that it's wrong.
English is my second language, so, I might be missing some nuance.
Telling someone they are wrong, means you know for a fact that they are wrong.
It does not mean you think they may be wrong.
It is binary.
You do not tell someone they are wrong if they may in fact not be wrong.