RUSSIA’S INVASION OF UKRAINE has been a boon for American oil and gas companies, Russian bond traders at Goldman Sachs, and chess grandmaster Garry Kasparov. The former world champion and staunch critic of Putin has become a regular guest on prime-time cable news slots. He’s penned op-eds in the Wall Street Journal and the Chicago Tribune. His 2015 book, Winter Is Coming, which predicted that Putin would invade Ukraine beyond its eastern regions, has rocketed to the top of Amazon’s charts and journalists’ recommended-reading lists. Kasparov is quoted by the press as though he were an oracle.