If you stop rewarding "luck", where luck means inherent ability, then all the "lucky" people will voluntarily exile themselves into careers that are actually fun and which they can put maximum effort into, and stop working 8 to 6 designing hydroelectric power systems or writing biannual rice production forecasts or gently explaining how to write status update emails to software engineers.

Plus, to what extent is the capacity for hard work based on luck? If long hours give you clinical depression because you got 50 bad genes and experienced neglect as a child and lived in a house with lead paint, do you get sent to live in a slum with the rest of the "lazy" people?