Having been a manager and having learned what it means to scale your ability to have impact and to land impact purely through leveraging others, I feel far more equipped to be the kind of engineer that I would like to manage.
More than that, one of the best experiences I've had as a manager is to be able to dissuade myself of many of the misconceptions and stereotypes that are rife in this thread.
I'd strongly advise non-managers in the thread to read Charity's other blog posts such as the Engineer/Manager Pendulum too.