I mean, they are so rich, they can start to mine Bitcoin, even if they lose some money they shouldn't care, they are ok with all those money they already have.
Am I wrong?
If you became rich and you are doing the dream life that everyone wants is thanks to Bitcoin, don't let him die.
Mining is not as easy as it sounds. They are too much hassle. Requires proper maintenance everyday. And why would someone do something that would make him lose money? That utterly stupid thing to do. Even though they have money, why would they waste it?