Perhaps this small contribution, a quotation from The Superstrategists, might help in understanding some of the intangibles in military and combat leadership:
'[Napoleon] could get such service out of his men because he shared (portions of the 1812 campaign excepted) his men's dangers and hardships, riding just behind his advance guard, often taking what fortune migth send in the way of food and shelter-a tumble-down farm building with some straw for his bed and rain and wind for company; a few potatoes, roasted in the embers of a campfire and shared with his staff, for supper. In action, he was fearless; after a battle he was concerned for the wounded. (Quite contrary to the usual concept of Napoleon, he was careful of his soldiers' health and had a surprising commonsense knowledge on that subject). He rewarded good service generously, sought to be just and patient. And he won a legendary devotion, the 'Vive l'Empereur' that echoes yet across the centuries.'
-Col John Elting