In many ways, David Malpass, whom US President Donald Trump nominated on Wednesday to head the World Bank, is an unsurprising choice. He’s a senior Treasury official overseeing international affairs. Plus, his background absolutely screams “Trump nominee”: He isn’t a woman (Indra Nooyi, formerly of PepsiCo Inc., was being considered). He is an outspoken critic of the institution he is now to head (recall Scott Pruitt’s tenure at the Environmental Protection Agency). And he has a controversial Wall Street background (he was chief economist at the ill-fated Bear Stearns), as well as some embarrassing calls in his past (he wrote