Kids get raised being told they can buy stuff that'll make them happy, and it's only when you become an adult and get a bunch of real world thrown your way that you get the chance to realize how much crap that is actually worth. And yet the majority of the western population doesn't seem to understand that you can't buy happiness. Sure, it's nice to have central heating and a full fridge, but these would make less fortunate people extremely happy! For a while, until the pipes bust and you need to make the guy come 'round to fix them.
Still, heating and fridging have at least some intrinsic value. They keep you from freezing over during sleep and keep your food from rotting. But everything else, after the initial surge of serotonin or whatever other hormone, just becomes part of the annoyances that keep you going throughout the day. At best, it blends into the furniture, so that you forget you have it and buy it again.
There is something seriously wrong with our lifestyle, but it's not clear to me how it can be fixed peacefully. Or violently. Or at all. Because human nature led to this, and how are we supposed to overcome that?