True each character needs flaws :)
And if you kept in mind that Jake had called his friend, who took that other henchmand of Roxy's dad, then you would remember how he was able to keep his fight up once the time was there :)
It isn't Jake that will torture them, nor is it Jake that has all the gear. He uses his friends to gain rifles, to gain information and to gain other things he need.
He aint perfect aswell, except with a rifle or hand to hand fights ;)
He is lazy as hell, loves to be more drunk than sober if he can, and enjoys creating free time, even if he has to work or not.