Who are these people ?

1 Warren Buffett, US, $62.0

2  Carlos Slim Helu & family, Mexico, $60.0 
3  William Gates III, US, $58.0 
4  Lakshmi Mittal, India, $45.0  
5  Mukesh Ambani, India, $43.0  
6  Anil Ambani, India, $42.0  
7  Ingvar Kamprad & family, Sweden, $31.0  
8  KP Singh, India, $30.0  
9  Oleg Deripaska, Russia, $28.0  
10  Karl Albrecht, Germany, $27.0  
11  Li Ka-shing, Hong Kong, $26.5  
12  Sheldon Adelson, US, $26.0  
13  Bernard Arnault, France, $25.5  
14  Lawrence Ellison, US, $25.0  
15  Roman Abramovich, Russia, $23.5  
16  Theo Albrecht, Germany, $23.0  
17  Liliane Bettencourt, France, $22.9  
18  Alexei Mordashov, Russia, $21.2  
19  Prince Alwaleed Bin Talal Alsaud, Saudi Arabia, $21.0  
20  Mikhail Fridman, Russia, $20.8  

And Guess who are these people??  Well very simple, they are the richest people in the world as published by some organisation.

Now I heard someone saying envy........

Does it matter how much you earn or does it matter how much you can earn??

And what do you do with whatever you earn?