It can be fulfilling to do make-the-world-better activism to help (you think) entities that don't talk, such as forests and fetuses.

Such activism can get intense through not being interrupted by a verbal reality check.

It is educational to work to help (you think) beings that can talk because they could definitly tell you what's going on with them and whether they think this is help.

Often people who help those who can communicate in grown-up human language set it up so those that can communicate in words won't have much chance to.