Commanding is more then charging all the time. Charging all the time means that aides and officers have no idea where you are, which is pretty important considering you're in charge. At some moments you might need to be seen by your men, but not doing so is not a sign of cowardice. It might sound harsh, but an officer, and especially a high one, is just a little bit more valuable then Private Tommy.
The story goes that the Prince of Orange rode around so much on the battlefields of Quatre-bras and Waterloo, leading a charge here and giving an order there, that most of his staff lost track of him.