Suppose you are one of London's 72 resident billionaires, and you're making 5% or so on your income.
You can pay for this digger in an hour, by spending that hour sitting on your ass, and it's not that you will be re-spending that money in your lifetime anyway. Fill it in or have someone salvage it, do whichever is quicker: you've got other things to do with your life and one of those things is to enjoy your new pool.
(Whether true or not, this acts as a good illustration of the scale of income inequality)
You can pay for this digger in an hour, by spending that hour sitting on your ass, and it's not that you will be re-spending that money in your lifetime anyway. Fill it in or have someone salvage it, do whichever is quicker: you've got other things to do with your life and one of those things is to enjoy your new pool.
(Whether true or not, this acts as a good illustration of the scale of income inequality)