This research analyzes the "syndemic" of mental stress and physical pain among 299 unregulated laborers in Dhaka, Bangladesh. Results reveal that psychological distress increased the risk of physical injury by 28-fold, highlighting a critical link between economic instability and worker health. These findings offer urgent parallels to the U.S. "gig economy," where delivery and warehouse workers face similar occupational injustices without safety nets. The presentation moves beyond ergonomics to propose a Social Justice Framework, challenging attendees to advocate for ethical supply chains and for mental health protections for vulnerable workers, both globally and locally.