It's called empathy, "the ability to understand and share the feelings of another."

Smile, well, probably it is intended as a hyperbole by Bonaparte, that he regrets not to be wounded and feel pain and thus share the fate of his men. Under different circumstances, it could well be understood as mockery and cynism.

A good soldier is ready to take and suffer anything the game of iron dice will destine for him. But if he has the choice, why would he want to get wounded instead of remaining unharmed and able to fight on ? A Spartan maybe would prefer to die if the battle is lost.

On the other hand, these words - whether they were really spoken on the field or not - were considered as a true sign of the First Consul's humanity by (some) contemporarians, including himself. That I can't share this impression shows that I am neither a poet nor wounded.

The earliest version of this quote seems to be found in a letter by the First Consul to his two colleagues from Milano, dated 18 June 1800:

En voyant souffrir ces hommes si braves, on regrette de n'être pas blessé comme eux.