In his books The Sane Society (1955) and Escape from Freedom (1941), Erich Fromm argued that society itself can be 'sick', becoming destructive and alienating and estranging people from their true humanity. In such a case, a person who cannot adapt to the society and develops neuroses or conflicts may in fact be the healthier one because their suffering reflects a refusal to fully conform to pathological norms.
He writes:
“The fact that millions of people share the same vices does not make these vices virtues. The fact that they share so many errors does not make the errors truths, and the fact that millions of people share the same forms of mental pathology does not make these people sane.”
Elsewhere, he notes:
“The neurotic is often the one who refuses to participate in this collective insanity, and who, in his protest, clings to values which are still human.”
He says that despair leading to suicide often stems from the inability to reconcile one's genuine human needs with a dehumanising society:
“To see the world as it is, and to experience one’s self as what one potentially is, creates a deep conflict with the demands of an alienated society. The neurotic may rather prefer not to live in a world in which he cannot live as a human being.”
Fromm does not glorify suicide; he sees it as tragic. However, he also refuses to reduce it to simply being a "disease". To him, the fact that someone would rather die than conform to a dehumanising existence demonstrates the depth of their suffering, as well as the strength of their human awareness.
Fromm writes (paraphrasing): "We must ask not why the individual has failed to adapt, but why society has become so hostile to human needs that one must fall ill — or even die — to escape it."