I mean verbatim my statement was probably a bit unclear because I didn't want try to define some level that would make someone be a potential good advocate. If you really want to nitpick, it is a tautology as written. Everyone has some level of personal responsibility. I probably could have worded it better.
The point I was trying to convey was that the more personally responsible an advocate is, the better an advocate they can be.
If someone has a consumerist, wasteful lifestyle but also is a powerful advocate for change, then that is what they are.
Nonexistent? Show me some examples. All of the good advocates I'm aware of also make changes on a personal level that are in accordance with their views.