Uh-oh! Another big bank is the subject of a depositor run amid charges its chairman has run off with customers’ money. Thankfully, this scandal is taking place in Eve Online, a space-age virtual reality created by CCP, a games developer and Iceland’s coolest company. But these troubles in the ether may offer some valuable lessons for earthly banking and regulation. Eve is one of the more successful multiplayer online games. Some 300,000 people — as it happens, nearly equal to the population of Iceland — pay $15 a month to navigate characters that pilot intergalactic spaceships, manufacture and trade goods,...