Jacobs -- who died in Toronto on April 25, 2006 -- was a true "public intellectual" who put her ideas into practice. She loved cities and urban neighborhoods. She was fearless and feisty. She was a moralist, who believed that people have a responsibility to the greater good, and that societies and cities exist to bring out the best in people.
Robert Moses had a bias to build things like parkways and bridges that enabled cars and their passengers in and around New York and especially on Long Island. This led to community-destroying urban sprawl. The better approach is to create higher density, better functioning city centers where people and communities can thrive.