That is a very powerful idea, and I have found much of what you said to be true in my own life. Taking ownership of my actions is always harder than ignoring a situation. It's very easy to continue thinking I was right and to blame something or someone else for their obvious 51%+ contribution to the issue. But that's a flawed accounting system.
You said there is no shame in admitting that we're wrong, it's a courageous act. It's also pretty realistic. If I'm going through life thinking that I'm right about everything, that sort of assumes perfection. Do I really think that I'm that good? If my actions are not perfect, then mistakes happen. In fact, they should be expected. Possibly that's one of the ways that the great ones become great, by being attuned to mistakes constantly.
There are degrees of error. I undoubtedly make major mistakes often, but the more I look for them, the easier it is to find the little ones. The small things that can become big problems. Fine tuning that mechanism, so that I'm owning smaller things, is one of my goals. Doing this can make the big ones more obvious and easier to avoid, and if you're working on the subtle, small problems, that's a good place to be.