By Charlie Conchie BlackRock chief Larry Fink said the firm was looking to usher in a “revolution in shareholder democracy” today as it grants greater powers to its clients to hold boards to account in investor meetings. In a letter to clients and global CEOs, Fink said that increasing shareholders’ sway over corporate policies would “empower” investors to have a “deeper and more direct connection” to companies and could have a “transformative power” on markets. The $8tn asset manager has been looking to boost shareholders’ sway over corporate policies with its “Voting Choice” initiative rolle…