There are some psychosomatic effects whereby even the bad drugs end up being good, when I need a boost just to get me over the edge and the short-term negative effects are outweighed by the long-term momentum, like a match to start a fire, even though the small stick of the match will be used and spent up and even broken, a sacrifice is made for the flame of a log fire that spreads and spreads, even into a whole forest if it really wanted to.