I think some people make the mistake of thinking that because their Thai GF /wife is a " good girl " and never worked in a bar , that they will be different . Often , they want the same thing - financial support and money to change their life ie. new house ,new car and some land .
With bar ladies , it`s more upfront and obvious . They needed money ( for whatever reason ) and rather than work in a factory job , they decided to try their luck in the nightlife industry - a wellworn path in Thailand , historically , when options for the young from the rural areas were limited to work in the fields or " Kai tua " in the streets / bars.