Everyone else will be reduced to compost.
It's the perfect plan. The final definitive justification for capitalism.
The masses are unnecessary. The masses will be optimised.
What could possibly go wrong?
They want influence and power. Being at the top of a hierarchy of millions, billions of people.
If there are no massess the 1000th billionaire will be a the bottom of the hierarchy instead of near the top. They don't want that. The masses are needed to give them the sense of power.
What these people want is power and control. Eliminating the masses goes against that.
The only thing that motivates Bezos is that Elon Musk’s has more and conversely Elon Musk would have a existential crisis if he was no longer number one