Not every farang is rich and supportive of local economy. If a Thai ask you to leave if you do not like it here, take it up to his/her superior. Make money work for you.
thais generally equate money to power and power to subservience. It is in their patriarchal patronage culture. If you stayed in an upscale community or hotel, you get respect and good service from all walks of life. It is what it is.
If Thais treat you lesser than you think you deserved, then if their eyes, you matter not much in their sphere of existence.