I think "misery loves company" is distinct. One of the many harms of sexual abuse is shame. Not coincidentally, shame is a tool of abusers and authoritarian power structures that protect abusers. For victims of abuse, knowing that they're not alone is a path out of shame and self-blame. It can help them put blame in the correct spot: not on what they wore or how they acted, but on the abusers and the abusers' support systems.