Hans Magnus Enzensberger from a while ago, in Sign and Sight:
Those who content themselves with the objective, material criteria, the indices of the economists and the devastating findings of the empiricists, will understand nothing of the true drama of the radical loser. What others think of him – be they rivals or brothers, experts or neighbours, schoolmates, bosses, friends or foes – is not sufficient motivation. The radical loser himself must take an active part, he must tell himself: I am a loser and nothing but a loser. As long as he is not convinced of this, life may treat him badly, he may be poor and powerless, he may know misery and defeat, but he will not become a radical loser until he adopts the judgement of those who consider themselves winners as his own.
Since before the attack on the World Trade Center, political scientists, sociologists and psychologists have been searching in vain for a reliable pattern. Neither poverty nor the experience of political repression alone seem to provide a satisfactory explanation for why young people actively seek out death in a grand bloody finale and aim to take as many people with them as possible. Is there a phenotype that displays the same characteristics down the ages and across all classes and cultures?
No one pays any mind to the radical loser if they do not have to. And the feeling is mutual. As long as he is alone – and he is very much alone – he does not strike out. He appears unobtrusive, silent: a sleeper. But when he does draw attention to himself and enter the statistics, then he sparks consternation bordering on shock. For his very existence reminds the others of how little it would take to put them in his position. One might even assist the loser if only he would just give up. But he has no intention of doing so, and it does not look as if he would be partial to any assistance.