Believe me, I see the error in my ways. I'm also very for one small rock can start an avalanche methodology, but I'm also a realist. The effect of me never eating meat again will effectively accomplish zilch. My recycling has an effect though, because everyone else is at least aware of it, and a large percentage of people are conscientious in that respect (whether or not its due to government or environmentalist groups, meh). In order to get real change happening, you'd have to convert a large percentage of the people over to vegetarianism, and in many third world countries, thats just not an option. And for many first world, its not one many would like to do.
Point is, humans dont change until we get slapped in the face pretty hard. And that may be at a point thats too late, and I may seem defeatist in saying so, but we really dont change unless we have to. Even if you find the taste of bacon absolutely delicious, there are still steps you can take to try to lessen your impact on the earth and still enjoy the flavors you love - example, buying local produce and meat. Steering clear of the big manufacturers and producers, like Oscar Meyer and such, helps too. Go to your local farmers market on a Saturday - lots of good food, fresh flowers, and (at least over here) some hot chicks perusing the vendors.