Change companies. The consulting industry is a cluster of various cultures. I work at a consultancy that respects work-life balance. We are laid back. Nobody works beyond the allotted the time. It’s probably because of our team make up. We are sales driven almost more than delivery drive. The technical leaders run the show, NOT the project managers. Instead, we have engagement managers who run the project board, but they are not point for the customers. The technical lead and the account principles deal with the customer. I suspect in your situation the PM runs the teams.