You're more likely to notice the bad things around you, than you are the good things. This is easy to notice. I have around me right now innumerable good things. I'm sheltered in a warm room, and have an endless supply of coffee. That's pretty good. My dog is snuggling cozily next to me, I'm not tired, I have food to eat, my bills are paid. Great, great things. But, it would be silly if that's all I thought about.
No, better to think about the bad things. So I can fix them.
Which proves, it doesn't matter what you have or don't have. Everyone is the same in that, when you have something, it's no longer on the fore of your consciousness. When you don't have something, it's all you can think about.
No one is better off. That we look to the future acquisition of some material as the next step in our journey towards contentedness is a trick our mind plays on us to compel us to act, not necessarily for our own good, but the collective good.