We all (should) know of the famous Chazal/Midrash/Gemara (someone please fill me in) that after 120, when we go up to judgment, we will be taken to a room and shown any resume from among millions to choose. We will end up choosing our own lives. (even homeless people)
What most people fail to realize is that G-d gave every person their own distinct personality and attitude, which allows that individual to operate in the perfect symphony of good and bad, known colloquially as the ‘peckel’. For example, you could have the richest guy with a beautiful wife and children, and even perfect health, but he IS DEPRESSED. Maybe his ruchniyus life is bad, maybe he has emotional distress, etc… On the flip side, you could have a poor man, trying desperately to support his family, he has little income, and his children are troublesome, YET he is a happy-go-lucky guy.
BUT THE MOST IMPORTANT THING TO REALIZE IS THAT WHAT SEEMS TO BE GOOD FOR ONE PERSON IS NOT GOOD FOR THE OTHER!!!!!
So even if someone wishes in his heart, “If only I could be rich like him”, maybe if his wish becomes reality, his personality will not allow to function the same way he did in his original ‘peckel’.