Define "extraordinary." Was Ghengis Khan extraordinary? If so, consider that any military dictator could duplicate his conquests if he had the power to see the future. He could refuse to show up for any battle he foresaw he would lose and only fight those he knew he would win.My point is outside of strategic trimming there is little a single person can accomplish, unless they become extraordinary.
This 'building up' is exactly what Rasputin did. He started out a peasant in Siberia and traveled toward the Russian capitol slowly building up his reputation as a mystic and healer. Before he got to the Czarina, he had won over all the important heads of organized religion. It was their say-so that granted him access to the nobility, which got him access to the Czar and Czarina.To exercise such influence you need access. Even the future, how would an ordinary citizen influence the POTUS? No way, until that person built themselves to extraordinary heights while changing and rechanging the world about them.
If you could, in fact, demonstrate accurate knowledge of the future at will, there is pretty much no one you couldn't eventually get access to, including the President. Start with the local dog catcher and work your way up.