Most of them were through the misuse of the outside sales exception (financial services, mortage industry and others), although other exempt exceptions have have been involved. Past that, maybe your employer is a fool or maybe the employer is a knave Or just home document violations, such as unpaid overtime
The Overtime Megan Leak: What REALLY Happened & Aftermath
When you eventually leave this employer, and you probably will, file a wage claim on your way out the door