A name is not like any other word. It is pronounced the way the entity with the name pronounces it. You can’t tell me how my name is pronounced, for example.
To mispronounce a name because you don’t know how it’s pronounced is fine. But to purposefully mispronounce a name after you know it’s wrong… Well if you’re concerned with “not looking like an idiot” then we’ll just say it’s counterproductive.