Wouldn’t the wealthy simply find some way of evading it?
You can’t move a nation’s natural resources off shore. You can’t evade a Resource Rentals charge, just as you can’t evade paying your rates or mortgage, whether you’re Joe Bloh or James Packer. In our current system if you don’t pay your rates or your mortgage your site is reclaimed by the owner or by the local authority. That wouldn’t, and shouldn’t change. If you want to own shares or property overseas that should be no skin off anyone’s nose, good luck to you. If you’re using wealth generated in this country to do it, that’s fine too because you would also be spending some of the profits here anyway.