One could argue that NO game matters in any meaningful way. Be that a regular season game, a conference championship game, or a national championship game. But it would be a stupid argument. Kind of like yours....Beating or losing to Arkansas mattered in what meaningful way? Hence no impact.
There are tons of people that have zero interest in college football or sports where all of this is 100% meaningless. But it's not to the players, coaches, and fans. I'm a fan of college football. So this stuff matters to me. Obviously you are not. That's ok. Go to an art show, a pride parade, a cooking class...whatever you like to do. I will continue to care about these games along with fellow college football fans.