You'd first need to help them live with dignity. For the genuinely homeless the only social environment that's equipped to care for them are mental hospitals. S

You'd first need to help them live with dignity. For the genuinely homeless the only social environment that's equipped to care for them are mental hospitals. Secondly you'd have to recalibrate your expectations for what productivity means. A person who isn't functional enough to to work with a manager to help a corporation achieve its goals, can still make meaningful contributions to society. Even if it's simply by helping their own self and then telling their story. Like the stories of the people with encephalitis lethargica who came back to life by taking the drug l-dopa. It didn't exactly help them rejoin the workforce, but it brought hope to humanity.