Wall Street’s era of outsized profits is coming to an end

The “rogue trader” at Swiss bank UBS, who allegedly blew $2 billion on unauthorized deals, didn’t do much harm to investors—but he put a big dent in his employer’s profits.  The real story, writes The Daily Beast’s Zachary Karabell, isn’t what motivated Kweku Adoboli, but the increasing signals that Wall Street’s era of outsized profits is coming to an end—and denying that will only lead to more desperate transactions.