The per person metric is great! ~If you are a large corporation and need to shift blame that is.~

Yes, extraordinary personal consumption can make things way worse, but lowering your standards can only improve things so much until you hit the limit. imho the solution lies in using the resources we have more efficiently, so that people can sustain and improve their living conditions, while greatly reducing the ecological burden. If you demand that people shall lower their standards for the greater good, it will work about as good as telling them to wear a mask during a respiratory pandemic.