Mansueto speaks softly but makes very big things happen. He has already revolutionized the way investors get information (Morningstar), showered largess on his alma mater (funding for U. of C.’s library), and kept business magazines going strong (Fast Company and Inc.). Now the Indiana native is brainstorming with other big-shot biz leaders about creating a local hub for financial technology startups that would be similar to 1871 and, possibly, housed in the old trading pits at the Chicago Board of Trade Building.