Having co-written a book on the "A-word," our research revealed that the world needs these people. It was our contention that being labeled one might be a good thing: a term describing a person who is willing to break a few eggs to get big things done.
One of the examples we gave was the first military leader to be tagged with the A-word label, Army Gen. George S. Patton. You wouldn't want this guy in your house, but when we needed someone to march an army 100 miles to save all those soldiers trapped during the Battle of the Bulge (including my father), someone tagged with the A-word had to get it done.
The world will always need these people to push the rest of us forward or out of the way. So the next time someone calls you one, you might just say, "Thanks; now get out of the way."