HONG KONG/BEIJING (Reuters) - In Chinese power politics, careers are often built on years of toil in quiet conformity, punctuated by the occasional flourish of leadership in time of crisis or a policy initiative that gets adopted nationwide. The self-destruction of a rival doesn't hurt much either. Indeed, Bo Xilai's ouster as Chongqing party chief on Thursday has put his own leadership prospects on ice and done more to boost the career prospects for his rivals in less time than perhaps anything they did themselves. ...