He causes the attack on the bandits that leads to Lilly going ape shit. About time we got away from that crazy b'tch and her mote.
He takes the hatchet keeping the doors closed and the walkers away. We needed another shoot 'em up in an adventure game.
His general attitude is inspiring. That phase of transition to adulthood where we are all young and stupid is a time that must not be forgotten.
In conclusion, Ben is clearly the most useful character in the history of not just games, TWD, media, America, but the whole MULTIVERSE!