Actually it was the old society that wanted a better source of the one power, they wanted to no longer have to bother to create a male/female circle. So when they sensed the Dark One they immediately started researching on how to use it, so the bore happened, so the forsaken happened and so then the breaking happened. Technically the one power is incredibly addictive as well, but the addictiveness of both powers in merely a side effect.the only reason is that the forsaken wanted something better than the one power and got seduced by the addictiveness