The Politics of Voluntary Simplicity

I have been kicking around the idea for a while of whether living a simple life is enough. I have lived simply in one way or another for several years but, until recently, have not really seriously tried to distil the reasons for what I am doing into a cogent philosophy. Here's what I have come up with so far:

• Taking responsibility: I suppose from the the standpoint of moral philosphy I am a consequentialist because I believe it is important to be aware of and take responsibility for the harm one actions may do - whether to people, animals or the environment. A simple life therefore means minimising suffering to others even at the cost of some added inconvenience to oneself.
• Promoting health: A concern for staying healthy is important for everyone - but often our desires lead us to do things that although short-term are enjoyable will, if over-indulged, will harm our quality of life. Simple living, for me, involves eating better, perhaps eating less and getting more exercise.
  
• Independence: We are told that we must have or do so many things to live a meaningful life by those who wish to sell us these things. In order to get these unnecessary things we sell our time and energy for money. However if we see through the marketing hype we realise we do not need to buy into other people's ideas of what constitutes a good life. Free from the desire to possess these lifestyle objects we see we need less money and so we can afford to sell less of our time and energy.
• A more informed life: Living simply means you have to know more about what impact your life has on everything around you. You need to educate and inform yourself about issues you may never have considered before. You spend less time living a fantasy fuelled by your own desire and media marketing.
• Appreciating life: With more time and more emphasis on see the world as it is that comes with living a simpler life one also comes to appreciate what one has. If your life is spent chasing a dream, living for the future instead of in the present, life can slip buy without ever having been truly lived. Living simply is a decision not to put life on hold.

The above is all fine and dandy but my question is - is it enough?
We live at a time where consumption has put the whole planet at risk and I would go as far as to say that simplifying one's life is no longer a just an option for individuals but an imperative for the whole of society if we wish to avoid the collapse our entire civilisation.
On a individual level, a person living the simple has very little impact on the factors which are leading us into the possible social chaos that global warming and other phenomena will bring. Simple living needs to become a popular movement - not just because it is the best way to live but to salvage our future as a society.
Voluntary Simplicity is no longer just a personal issue but a political one. My thinking on my own motivation is clear enough now that I can try to communicate it to others. There is already a a growing understanding that we need to change our consumption patterns and reign in the power of transnational corportations if things are not to get very ugly in the future. I think I should turn my attention to trying to persuade others of the benefit simple living.
The question is how?