Then if they happen to land their catch they will be every bit as dishonest with him as they were with anyone they dealt with before him.
Some boyfriends or husbands watch their every move after getting them out of a FS spa. They drop them off to work, install an app on their phone to track their movements, Wechat with repeatedly throughout the day to make sure they have their phone, and pick them up after work. I recall several girls that would not venture down the block from the spa because of the tracking. I know several more that never stop glancing at their phone (sounds familiar?)
I know of other girls that married their American spa boyfriend. These guys don't trusts their spa princess at all and cut off their supply of cash. They can buy whatever they want on credit cards but they wont have a Lincoln in their purse.
I guess their honesty or dishonesty boils down to whether you are willing to setup boundaries that they willingly accept within their culture. This comes with all the expectations of taking care of them fully. That's why they ask if you are married, have a house, car, good job. You get triple the points by being a "boss" that employs "workers".
If you plan to be a permissive American and neglect to play the role of the accusatory, jealous, and untrusting Asian husband that threatens consequences, you will get played. It works, but it is a lot of work if you are faking being this person.