But how did you attain that wealth? Wealth is unspent income. You could have two individuals who earn $1000. But if one saves $1 and the other saves $100, then

But how did you attain that wealth? Wealth is unspent income. You could have two individuals who earn $1000. But if one saves $1 and the other saves $100, then the latter is 100x wealthier. But is he really have 100x the lifestyle? No, one spent $999 and the other $900. They are approximately equal. Considering that most people don't save anything (even in wealthy countries) it's not difficult to have 10x the average wealth.