Uncompensated OT for salaried employees is illegal in most of the developed world.
https://www.gov.uk/overtime-your-rights/compulsory-overtime
and after that the employer must obtain signed consent of the employee, otherwise it is illegal. So the original point of "shaming into OT" stands.
Overtime of any type for any type of worker is frowned upon by the authorities here in Norway but I suspect that the UK and US are a bit different.