What I meant was that printing a share at any price is printing money. Uber prints a share. An investor exchanges currency for it. The share goes into his account. He can treat that share as money for most purposes. For many uses of money (eg securing a loan, providing working capital..) it's as good as having foreign currency, sovereign or private bonds. For other uses (eg paying rent), it's fungible with currency/money/coinage/etc..

Shares can be overpriced, but so can currency. It's besides the point, imo.