Silicon Valley, home of politically motivated companies like Apple and Uber, openly ignored the Bay Area’s 35 percent murder spike last year. These firms can do a lot to effect change in their home regions if they wanted to. They can demand more policing. They can spend money on mental-health facilities. They can fund better street lights, which have been shown to reduce crime, and cameras in hot spots to identify assailants faster. They can speak up on the issue again and again so politicians know it matters. Instead, they’re putting out slickly produced TV commercials telling us they “care” about abstract, often loony issues.