If a goal is truly visionary, it's going to be confronted by doubters, skeptics, and those threatened by its realization. As a result, there will always be walls put up on the way to achieving the objective. Some of the most capable people I've worked with know how to go over, around, or straight through those walls by virtue of their resourcefulness and sheer force of will.
It then occurred to me that I've known a number of people who embodied the ability to dream big and get [stuff] done, but who also proved very difficult to work with. Perhaps shielded by the immense value they brought to their respective organizations, they never cultivated the ability to manage compassionately, or even cared to. Rather, they did things their way and expected everyone around them to adapt accordingly.