Speaking personally, i have great regard and respect for the folks who started the Open Source Software movement (https://en.wikipedia.org/wiki/Open-source_software_movement) and its progenitor Free Software Movement (https://en.wikipedia.org/wiki/Free_software_movement). They urged/convinced others to join them with the result that Computing/Software became accessible to all (particularly in the developing world); "Software ate the World" because of their efforts.