"whose" money matters here. It's VC money, mostly. Well-capitalized sophisticated investors, not voters and pension funds.
If Microsoft loses 30 billion dollars, it ain't great, but they have more than that sitting in the bank. If Sequoia or Ycombinator goes bankrupt, it's not great for lots of startups, but they can probably find other investors if they have a worthwhile business. If Elon loses a billion dollars, nobody cares.
It is VC money pricing in the value of this enterprise to the rest of society.
More over, if capital markets suddenly become ways to just lose tons of money, that hurts capital investment everywhere, which hurts people everywhere.
People like to imagine the economy as super siloed and not interconnected but that is wrong, especially when it comes to capital markets.
If Microsoft loses 30 billion dollars, it ain't great, but they have more than that sitting in the bank. If Sequoia or Ycombinator goes bankrupt, it's not great for lots of startups, but they can probably find other investors if they have a worthwhile business. If Elon loses a billion dollars, nobody cares.