I presume you're opposed to theft, unless, of course, the target is a rich guy. It's a fashionable double standard to live by. Often, if not usually, envy is somewhere lurking in the background, and certainly some kind of utilitarianism.

The only licit way to confiscate that money is to show that it has been acquired illicitly, at which point it should go to those from whom it was taken, if possible. Even then, doing so may cause more harm than good, depending on the circumstances.

And mind you, living is an ongoing cost. Poverty is not a thing to be solved, but something we must continuously respond to, in healthy ways. The proverbial selling of the Mona Lisa to buy rice/housing/etc isn't the way to go. And human beings do not live on bread alone.