This is the point. What’s important is how ownership and management of economic production is allocated. Who runs businesses? In capitalism they are largely owned and managed by the people that built those businesses. In communism and nationalised industries they are owned and managed by a government bureaucracy. In this case the owner transferred that control to a charitable trust.

Personally I believe each of these can have advantages in various situations. Some critical shared infrastructure and services I think do belong with government. Defence, healthcare, emergency services, perhaps some utilities. Charitable trusts have a place. But I also believe private citizens that demonstrate the ability to build and run businesses also have a place, a big place in the system. Private capital investment is a massive and highly productive and efficient force for economic good. Typical billionaires don’t spend billions on themselves. Millions yes, but most of those billions exist as shares that represent control of productive businesses that provide goods, services and jobs. If they spent it all on themselves they wouldn’t be billionaires for very long.

I don’t think it’s generally in the public interest or beneficial to society to confiscate businesses from their owners, and what? Give it to who? There is a legitimate concern that such control can lead to negative effects like exercise consumption or political influence, but the way you deal with that is to address those problems directly.