Most people have not heard of the "False Consensus Effect." It's a rather obscure psychological concept that describes a normal cognitive bias all us human beings have--even you as leader of your organization. However, as the name implies, it's a bias which is false.
You can read about it in "Your Colleagues Often DON'T Think Like You Think." Once you do, you might want to do some additional research on your own to reduce the frequency by which your thinking is thrown off--it will keep you from making some avoidable mistakes!
Dennis