E.g., all people have opinions on race. But as a white person I try to recognize that my opinions have been shaped by a system that unfairly favors me, and part of the way it does that by limiting the amount I hear about the experience of non-white people with respect to race. (By the way, I don't think this involves much conscious malice; it's just one of the bugs you get when primates have to build a civilization from scratch.) So to the extent that I want to have informed opinions on race, I have a lot of work to do.
I'd add that even accounting for the learning value of listening, I think there's another value to it. Black people are already generally aware of what white people think about racial issues; they have to be. So I try to separate when I want to be heard from when I think I have something to say that is actually helpful to the people I'm talking with. In the former case, I try to favor silence. There are other ways I can feel heard, and helping other people feel fully heard is a great way to create some willingness for them to listen when I actually do have something possibly helpful to say.