Not my OC but what I've believed for years: there's no conflict between reducing your own environmental impact and holding corporations responsible. We hold corps responsible for the environment by creating a societal ethos of environmental responsibility that forces corporations to serve the people's needs or go bankrupt or be outlawed. And anyone who feels that kind of ethos will reduce their own environmental impact because it's the right thing to do.
Thoughts?
Not what you said. Flat out. What you said was:
If you can’t act with any level of personal responsibility, how can you be a good advocate for corporate responsibility?
Either this is a tautology -- you define anyone who advocates for corporate responsibility as having some level of personal responsibility -- or else it's bullshit. If someone has a consumerist, wasteful lifestyle but also is a powerful advocate for change, then that is what they are. A powerful advocate for change, even knowing that change may one day force them to change their own lifestyle.
It's like saying a smoker cannot campaign against cigarettes. It's a load of crap. It comes from a place of wanting to place blame more than wanting to fix problems.