I struggle to see what's exactly smart on spending $400M in mansions, and another ~400M in yachts (apart from his +100 cars collection). Just the maintenance for his yachts is ~$25M a year.

You could say "he does what he likes", but it doesn't sound smart nor grounded to me.

Wikipedia lists him with a net worth just shy of $14 billion. As a percentage of wealth, the mansions, yachts, and maintenance are less than what a typical person spends.

Not that it makes any financial sense whatsoever, but the scale of wealth is unfathomable. Money no longer makes sense.

I’m not sure my words will help you understand me better, but still: some people live to work, and some people work to enjoy their only life.