In America, even the homeless walk around with smart phones. Yet the dominant narrative of our culture (in politics, the media, entertainment) is about how horrible things are. It's mass delusion. And, ironically, the scarcity mindset, the belief that we are experiencing lack, or about to experience lack, is the reason that homelessness is a problem at all. If you believe you don't have enough, you are much less likely to be generous. I think if we realized the true level of our material comfort, the abundance we enjoy, and the ease with which we can attain or manifest more, we would be much more likely to care for all members of the tribe. The balance you are talking about is fundamentally important to actually making improvements in our society.