The super rich are so much worried about the revolutionary financial technology Bitcoin and the Blockchain.
Who told you the super rich all always worried? Was there any statistics/survey done to gather such data or how were you able to come to the conclusion on this
First, they did not earn their riches by hard labour,
How sure are are? Because if that's how it is easy to become a billionaire without hard labour, why aren't you yet a billionaire?
second they must know that they will never use their mountain height of wealth in one life time.
Definitely, because no one rich billionaire can ever finish his accumulated wealth in his lifetime
Their wealth will be inherited by their children,
they must teach their children to make money and enjoy their own labour
Definitely, because if they don't teach them how to make more money, they will end up sqandering the little there father the billionaire has gather
they must setup charities to help the humanity.
It is never a must for any rich billionaires to setup charity organizations to help humanity, it's always out of free will