They have less than a single tube. Yet will last for dozens of tubes. It sounds like you are trying hard to convince yourself.
If you want to patch tubes, go ahead. Just dont tell me you are saving the planet by doing it. Unless of course the tube-patching person doesn't use plastic bags, electricity, or buy a shitload of stuff from retail stores. Hopefully the bike with the patchy tubes in the tyres is a recycled clunker and not something which was manufactured in a big factory in Asia where you cant see your hand in front of your face for smog.
I also hope the tube-patching planet savers inflate their tubes by hand rather than use CO2 cartridges