Yeah. I don't see them either. There are probably very well-organized people out there with a crack habit. The ones I see are the dead-eyed fuckups on the street spreading misery to themselves and their surroundings.
But it cuts both ways. There's a phrase "high-functioning alcoholic", meaning someone who still holds down a job, wears respectable clothes and all that. I grew up with a drunk: "high-functioning alcoholic" just means the worms are well concealed inside the can.
Did you know him personally to be able to make that judgement. To me it sounds like lying on his taxes destroyed his life, or to be more charitable to him, the government destroyed his life