While that sounds noble and selfless, the reality is that if you get lost or stranded, someone who knows you are missing/delayed is going to contact the authorities and they ARE going to come to find you whether you want them to or not. Not being able to know your exact location (since you don't have a PLB, etc.) will cost rescuers time, resources and likely increase the danger to them. It will also end up costing those that pay for you to be rescued more money (i.e, in most places, the taxpayer). Since it will also likely take longer to find you, your situation may become more critical, or you could die; this very negatively impacts your family, friends and others. I therefore conclude that, IMO, not carrying a PLB into the backcountry is, rather than selfless, selfish.