The world of finance is focused on how to get high returns, and people in the industry seek the same in their philanthropy. Of course, what that looks like is shaped by a donor’s values and passions. Here are several people in finance who’ve defined their giving early in their careers. One has poured hundreds of millions of dollars into brick-and-mortar projects. Another is helping bring better seeds and fertilizer to farmers in Africa. One couple seeks a breakthrough in understanding the gene mutations that increase the risk of cancer; another is funding research to improve U.S. education.