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"forbes" magazine's latest rich list. throughout the trial, the brothers and hoy maintained they were innocent. >> translator: i can say personally have i done nothing wrong. and i can vouch for mr. thomas kwok that he has done nothing either. i hope this investigation will clear my name. >> reporter: but the trial itself fueled a wider debate about the access of big business to big influence, especially in hong kong, a vibrant financial hub where the wealth cap is increasing. >> if you don't have outright bribery, then you might still have problems with influence peddling through the election system where large conglomerates have large numbers of vote. that tends to result in a government that has to respond to its corporate electorate rather than to the general public. >> reporter: this isn't the first time corruption in hong kong has hit the front pages. it follows hot on the heels of an investigation into former chief executive donald tsang for taking expensive gifts from chinese businessman, an allegation he denies.