Holding shares in a company (or dollar bills) is not depriving others of something. The fisherman will go catch fish tomorrow, the wheat in the fields will keep growing, the builder will build a house.

If someone starts paying the fisherman, farmer, builder, more to stop doing what they are doing and start building mega yachts, then there will be less fish, bread, and houses for others.

That said, I assume it's much simpler than that and it's just about the hypocrisy of the climate change billionaires to be bellowing out carbon while demanding the selfish greedy commoners cut our emissions.