I don't know, are you 12? No, seriously. Lack of maturity might play a factor in that. A mature Titan feels no need to brag, to down other classes, to engage in pissing contests. We're excellent, everyone needs us. We don't need to say it. There's no reason to. And on a lore-ish level... That was the point here. Titans might be as described above in the story, but it also highlights that they NEED the war. Everyone else would go do something else if the fighting stopped. Other than Titans. So Titans need everyone else around, because without them the war isn't winnable and/or there wouldn't be one. What I'm trying to say is... Even the jackass Titans you come across NEED you, whether they'll admit it or not. Who the -blam!- would they play with if you weren't there? They need you in order to have something to bitch about. Always remember if someone you're playing with is talking shit, you have the option to leave and see them try to do it alone.