I can appreciate the craziness of life and the desire to have the simplicity of pizza or Taco Bell. ;-) We don't have kids, but even still, life gets busy. Some days when I come home from work, I don't feel like spending an hour or more cooking dinner. That doesn't make us bad. It makes us human. Like you say, making changes one at a time will eventually get you where you want to be.
And I think the market will eventually evolve to the point where the Campbell's soup with the carefully chosen ingredients will be the rule and not the exception. The fact that they are making soups like that means there's a market for it. It means people want more options with carefully chosen ingredients. Don't lose heart yet. :-)