With a union, he was able to stay at his job and not experience abuse. Without a union, his likely outcomes were to leave his job, possibly winding up at anoth

With a union, he was able to stay at his job and not experience abuse. Without a union, his likely outcomes were to leave his job, possibly winding up at another abusive organization that experienced no penalties for abusive behaviour, or report his manager to higher-ups (who may have been aware or complicit in the abuse) and suffer retaliation when his manager found out, or report his organization to authorities and likely suffer retaliation from the organization as a whole. None of these are particularly positive outcomes, which is a direct result of a large organization having more power than an individual, unorganized worker.