This too concerns me as I prepare for a working vacation to BKK.
But really I know the writing is on the wall. As I searched on YouTube for information on BKK, all I could find was how to live on a pittance in BKK and still have fun.
Worse still are the posts on how groups of Indians club their money together to go all in on a group shag of a prostitute in order to save money (even commenting on the "bonus" shag to be had by all in the morning).
Probably its age-related. I was a backpacker for couple of years out of college but these days I find them irritating.
Couple years ago I met up with a friend in Tokyo. For some incomprehensible reason he brought along 2 European backpackers to dinner with us.
After dinner they argued that I needed to pay more based on their calculation. I said, I couldn't care less and paid for the whole dinner.
Later we went to a bar and they were counting up coins to pay for their drinks. Again I felt so sorry for them I paid the bill myself. Just embarrassing all the way round.
So, I will do my best to avoid these situations. As one poster said, just head to the high class places. This is what I am optimistic for BKK - i am hoping to be able to frequent top class venues for a fraction of the price found in Tokyo, Shanghai, HK, etc.
I suppose I will do a reconnaissance of Soi-Cowboy and other such places in order to be informed.
But, to the OP's point, and with no experience of BKK myself, I would hope there is a high class, top notch experience to be had away from the YouTuber, backpacker, Social-Security brigade.