Were you worthless while a stoner before you broke the cycle? If you will notice, I refrained from saying none can shake the effects. But I will venture that many who have a compulsion for the drug, not unlike those compelled to drink alcohol or other drugs, are generally useless during their addiction. If that is too judgmental for you, then so be it. Drug dependence is a curse of mankind IMHO with plenty of evidence of its harsh results.