You're also just flat-out wrong. If I encouraged 10 other people to "go green" but din't alter my own lifestyle one jot, that would have MORE impact.
That would only be true if you assume those 10 people actually take the advice and alter their lifestyle. Chances are they're just like you: They hear the advice but they don't do jack about it because they think they are too insignificant to make a change. In a situation like that, if you change your lifestyle, your actions DO have an impact. But these scenarios are completely irrelevant because of what I said earlier.
If you change, you make the same impact than if you don't do anything at all. That's my point.
My personal actions make NO difference to overall climate effects
Do you really believe that? Simple things like turning off lights when you don't need them, using low power light bulbs, not flushing the toilet unnecessarily, taking short showers, etc. These all have a larger impact than what you might expect.