There are many characters in the history of games that we remember. Of course, it takes a lot of time to shape them. When you are playing a game, would you consider letting a character sacrifice himself so that he can be remembered?

No. It's not sacrifice which makes someone be remembered but it's the impact they've made to the player.

That answer depends on the game.

If it's a game where I genuinely want to "save," "help," or "nurture" a character, then I’d want that character to understand the meaning of what I said and be able to move forward with it as part of their growth.

Cheap death. 

are we raising chao?