When rich person pays others to, let's say, build a luxurious castle, the money is both redistributed back to the economy AND the castle is there to use, for a

When rich person pays others to, let's say, build a luxurious castle, the money is both redistributed back to the economy AND the castle is there to use, for a few centuries at least. That's how investing* makes the society wealthier over time, and promoting consumption instead is nuts. * There is a caveat that it should be a new investment rather than a purchase of the existing one, the latter is zero-sum.