It is possible to spend hundreds of millions of dollars on a yacht

A massive waste of resources and damaging to the planet. Something a sociopath would acquire.

billions on space travel

Cool. Let governments do that then. We don't need to corporatize space.

Infinite Growth is good for board members and shareholders.

Infinite growth in a finite system is cancer. It kills the host every time

Growing the hoard can be it's own game similar to idle games or gatcha games.

When the horde you're growing is resources other people need to survive you can go fuck yourself. Go play a gatcha game instead.