but we dont FEEL his pain at all when we havent seen him in the whole game. we only get told of what happened to him and with wife, but we havent gotten to know the character at all enough to actually care or acknowledge his motivations. he pops out of nowhere, explains this master plan he had, and why, and thats all.
Gabe's descent into darkness however, takes place over the course of the whole game. You play as him, you ARE him, and you follow him, as he starts off as a still-in-mourning widowed knight committed to his duty,and ending on the edge of a cliff in what might as well be hell, feeling alone, cheated, doubting his own self and motivations, and God. He sees himself as a dark being, a killer, and unsure of what to do with himself now that his mission has ended, leaving him nothing but bitterness. Then we see how he has no choice in his transformation, and goes through with it, having nothing to lose, the change eventually stripping him of whatever remaining traces of humanity and "light" were left in him, plunging him into complete darkness.
we (or at least I) feel him far more than Mathias.
Mathias is rather more of an anime style story for it. It makes sense in an Anime or game, but realistically, doesnt hold up as well.