The super rich are so much worried about the revolutionary financial technology Bitcoin and the Blockchain. They need complete understanding to not to fear of the future. First, they did not earn their riches by hard labour, second they must know that they will never use their mountain height of wealth in one life time.
Their wealth will be inherited by their children, they must teach their children to make money and enjoy their own labour and they must setup charities to help the humanity.
Also they can buy Bitcoin and protect their wealth from invisible theives. If the fiat currency system collapse then their paper money will become ZimbabuIwan Dollars.
The solution is transferring their wealth into digital asset.
Why should the super rich be worried about an emerging technology and Bitcoin? Except it is a direct threat to their source of wealth. And even if it is, I am sure they can always learn to adapt to the new trend and not try to fight it.
And who said investing in Bitcoin is a guarantee for securing wealth? Investment in cryptocurrency is a risky venture and there's no guarantee that you won't loss your money.