CHICAGO — For more than a century, industries have shaped the banks of the Calumet River on Chicago’s Southeast Side, creating a gritty economic corridor of trucking and cement companies, manufacturing plants and scores of salvage yards that spew metallic dust from scrap piles. Yet, the prevailing view had been how those employers create well-paying, blue-collar jobs, and jobs are good for this largely Latino enclave, said Richard Martinez, a pastor at Nehemiah Family Fellowship Church and third-generation Southeast Sider, whose family worked for the factories.