This is really the only important thing that we can do. Except maybe not flying in an airplane, there is little the average person can do in their daily life to inhibit climate change. Whether due to preventive policies or due to resource shortages our lives will change in the near future. Expecting individuals to shame themselves when the society at large encourages the opposite is counter-productive.
It is not to say that anyone is wrong to choose to live more frugally. More importantly, we need to recognize that any hope we have must come from the top down. We have more research and more solutions than we've ever had for any problem, but we don't have someone to pull the trigger.