The following might be helpful as, apparently, you are not aware of the officer punishments in the Grande Armee.

Officers could be 'suspended' during which time the officer's authority was taken away and pay was stopped. The officer so suspended had to wait until the charges against him were investigated for the outcome to be final. During that time the officer might be ordered to remain in a village as far as 100 miles from Paris awaiting the outcome of the investigation.

Retrogradation was being reduced to either a lower grade or reduced to being an enlisted man. If this happened to a Guard officer, he might be sent back to the Line.

Destitution involved being expelled from the service without a pension. Your decorations were 'retired' and you could not wear your old uniform. If you had a title of nobility, it was stripped from you and you could be sent to a state prison indefinitely.

These were the punishments that could be meted out for officers who did not do their proper duty or committed crimes or both. Dupont and his division commanders were destituted, which, again, they fully deserved. It was military punishment for a military crime.