The lawsuit is part of a flood of recent cases — brought in California and across the nation — that accuse employers of violating minimum wage and overtime laws, erasing work hours and wrongfully taking employees’ tips. Worker advocates call these practices “wage theft,” insisting it has become far too prevalent.

Some federal and state officials agree. They assert that more companies are violating wage laws than ever before, pointing to the record number of enforcement actions they have pursued. They complain that more employers — perhaps motivated by fierce competition or a desire for higher profits — are flouting wage laws.

Many other states are seeing wage-theft cases. New York’s attorney general, Eric T. Schneiderman, has recovered $17 million in wage claims over the past three years. “I’m amazed at how petty and abusive some of these practices are,” he said. “Cutting corners is increasingly seen as a sign of libertarianism rather than the theft that it really is.”