You touched on some things I've been thinking about before.

• What Is Financial Value?
• What is property? Is it defined by consensus?
• The Truth About the Steemit Tron Takeover with Steem Witness Luke Stokes <-- I think you'll enjoy this, though it's a two hour interview. The second half deals entirely with the nature of property and why you may be right that property on a blockchain may not actually exist since ideas are not rivalrous.

As to Universal Destination of Goods, that rubs me the wrong way a bit... it opens the door for religious or dogmatic statist control of everything "for the greater good" (for whoever gets to control that definition). Historically... I'm not a fan of that approach.