Grim:
The good argument in favor of billionaires — trillionaires, now — is that one person can make a decision about how to deploy substantial capital in efficient ways that a government, a corporation, or a committee can never. Musk is building space rockets and tunneling equipment that could build a Mars colony because he wants to, not because of fiduciary duty or because spreadsheets suggest it is wise. We are lucky that the world’s richest man loves Buck Rogers rather than Karl Marx.