Stories seem to indicate there is a lot of sexual trafficking and rape in the industry:

https://www.businessinsider.com/superyacht-sex-crew-sexual-h...

https://www.stylist.co.uk/long-reads/yachting-hollywood-traf...

https://www.cosmopolitan.com/uk/reports/a38053431/yacht-girl...

I've read multiple articles (but can't seem to find links to them) that threats of throwing unwilling parties overboard are used to silence and coerce.

Seems pretty lawless to me.