Why do BangMed students dislike EngMed students so much?

Why do so many BangMed kids have this stupid notion that all EngMed kids are rich, entitled, and spoiled by their parents? I am an Olevel student myself, my parents are as middle class as can be. Are we poor? Hell no, but my family still drives an old, beat up, 20 year old car, and my parents are a bit frugal when it comes to spending money on things that aren't essentials, such as, buying skincare/makeup, fiction books, or buying musical instruments, for example. Its not like they always say no if I wanna buy something, but if I wanted to, say, buy a story book, instead of going to normal book stores, we will go to nilkhet. If me or my sister want to buy beauty products, we go to wholesale cosmetic markets. I could give a lot of examples, but I don't wanna turn this post into a novel. I also had/have EngMed friends who's families drove old cars, or they wore makeup that was a hand-me-down from their relatives, or they wore clothes that were hand-me-downs from their older siblings. I have only come across one person who went to EngMed schools and was kinda snobbish because his parents were rich and he lived in a mansion. Other than that, I have not come across one person IRL who was genuinely spoiled and an EngMed kid.

Now, I have seen plenty of my BangMed friends say that EngMed are rich, spoiled, baper takay chole, etc (funnily enough, my mom makes more money than my dad lmfao). And the FEW TIMES I've GENUINELY seen EngMed students be snobbish/have a superiority complex towards BangMed students have been online, on Instagram or Facebook reels. I have also encountered a few EngMed coaching teachers who have this attitude towards BangMed students. But mostly, I just see alot of dislike or presumptions about EngMed kids from BangMed students, than the other way around. Koiekdin age, I introduced myself in an Instagram groupchat, and said I was an Olevel student. I think I had 3 people reply to my message with either "posh"/"borolok". Thoughts?