OTTAWA — Brookfield chief operating officer Justin Beber appeared at the House of Commons ethics committee on Monday, but unlike the Canadian singer with a nearly identical name, his presence did not create waves of excitement. For two hours, Beber was repeatedly grilled by opposition MPs about Prime Minister Mark Carney’s potential for conflicts of interest with Brookfield, Carney’s returns of the global investment funds he helped set up at Brookfield, but also Brookfield’s tax practices. “Mr. Beber, you’ve been, I think, a very patient participant in this late-season fishing...