Maybe the courage just comes along for the ride. It seems a natural manifestation of his goodness that he's helping this other man. I've struggled to deal with what this is in relation to courage. Take the case of a soldier who throws himself on a grenade to save his buddies. The person who dies on a grenade like that does it absolutely as a reflex.
Nobody expects anybody to have to do it.
It's not cowardly not to fall on the grenade. There's no shame in not doing it. So there isn't a negative motivation. So it can't be fear of shame that would motivate you to fall on a grenade. It's just a sacrifice for these people you've lived with or these people you're in the presence of.