MOSCOW (Reuters) - Sergey Romanchuk has had a stellar career. At 37, he heads the currency dealing department at a top commercial bank in Moscow and drives a Jaguar. Russian Prime Minister Vladimir Putin (L) listens during a meeting with organisers of the All-Russian People's Front in Moscow December 8, 2011. REUTERS/Alexsey Druginyn/RIA Novosti/Pool Romanchuk has found success and wealth under Pr