Jesse Jackson is a leader continues. Select two other leaders, at the beginning of the 1980's, Thomas Sowell and Clarence Thomas. An easy comparison, Though Justice Thomas sits on the U.S. Supreme Court, in the year 2013, and has sat on the court for over 20 years. lets say he is unknown in the black community, in the Russian parlance, a total non-person. Thomas Sowell, just an unknown person within the American black community.