Yes, it is a show about the lives of a gang. Part of being in a gang is the death spiral into oblivion. I have been enjoying Jax's journey from young idealist (who I actually didn't like at all) to dangerous gang leader (who at least is an interesting character).
People are paying for their actions...Clay has been drummed out of the MC, Gemma is far from the "Queen" she once was, Opie and Piney are dead, etc.
By the time the show ends, most characters will have paid with their lives, the others will be in prison.