Their hard work is enabled by you saving instead of consuming the product of your labour. When you transfer it to your heirs you’re giving them a temporary leg

Their hard work is enabled by you saving instead of consuming the product of your labour. When you transfer it to your heirs you’re giving them a temporary leg up which dissipates over time because people spend or invest money. If they spend it it’s not a long term problem, they don’t have it any more. If they invest it either they’re bad at it in which case their relative position will decline, so it’s not a problem, or they’re good at it, so they’re contributing to economic growth by efficiently allocating resources. The public good is that secure property rights are a great way of increasing economic growth which enables human flourishing. Would you rather live in a world as rich as the 1910s USA, with equal wealth per person, or now, with antibiotics, air conditioning, cheap easy and safe travel and practically free high quality entertainment available 24 hours a day? In 1904 one of the most powerful men in the world, the US President, Calvin Coolidge, has his son die of an infected blister. I’d be hard pressed to choose between living as an average Ukrainian today or Rockefeller or Carnegie back then. Economic growth does enormous good to huge swathes of people and confiscatory taxation jeopardises that.