This, I think, involves a dilemma. On the one hand, I agree - it's a signal that's been expressed so many times that we've grown used and desensitized to it. But does that mean it shouldn't be expressed anymore? Perhaps that's an even more dangerous development - if it's not being said anymore, people might trick themselves into believing it's not there anymore, either.
Keneally seems to signal this herself, too, when she mentions that she's tried to act on the issues and invest in these actions financially (within her very limited means). Apparently, as a photographer she also asks herself the question whether it's sufficient to make the problem visible.
I guess if you look at it from a distance, the engaged photographer might be one piece of a larger puzzle or system, that also consists of elements that work together to address problems and promote structural changes. This brings the question whether all parts of that system are actually in place and well-connected, or if perhaps certain parts are over-represented and others are missing. Is there anything the photographer-with-a-mission could do at the systemic level? Or is he/she limited to raising the flag on the level of symptoms?