The sacrifice people overlook

Why does everyone overlook the fact that Rudeus literally sacrificed his life to save someone in the very first episode of Mushoku Tensei?
Before reincarnation, he saw people in danger and ran into the road to save them, knowing there was a real chance he could die. And he did.

That moment is important because it shows that, despite all his flaws, Rudeus wasn't completely devoid of empathy. IT was not a reflex action he actually thought about it and consciously decided to save them putting his life at risk for someone

It's easy to judge Rudeus for everything that comes later, but that first episode already gives us a glimpse of the complexity of his character.

I understand that he still carries his past self to this new world but at least he decided to live better to not make the same mistakes.The trauma that this man carries is large being. Being Physically assaulted him,Stripped him naked
Tied him up and humiliated him publicly.Took photos of the incident and spread them around.

Rudeus is flawed, but he's not incapable of doing the right thing.