I think you underestimate the size of the market. It's a major industry. Just because it's not as obvious as enhanced tits, doesn't make it insignificant.
It's like walking along the lake in Lugano in July and August. 10% of the people are from the Middle East - and 90% of the women have a bandage on their noses. You might go their to relax, but there's a major industry going on at the same time.
i am impressed of what you know
anecdote: when i was 20s and going see family in Marseille, she was the wonderful daughter of best friend of my mom. a beauty. and she started PhD. But she always had this problem about her breast. So she went to surgery to get a really big one. Not the smartest girl i met but it can show even an educated and beautiful could desire to feel confident with her body.
about the nose. I have been there and bit more East

in Iran the girls were putting this fake bandage on their noises so people would believe they are rich and can afford surgery. There having money is an mportant matter more than surgery itself.
make up is very very very much fashion and shows you are not from the poor class where girls are not allowed to
still it is high education country but in the same time very much show off much more than in Europe

that's why you see a big difference between parts of populations some mor focused on educaiton some money and some spirituality some into morality and conservative some traditional. or mixes.
sorry for all this .. i guess countries are so different and surgery is not done for the same reasons sometimes.
i don't know anything about brazil but seem their surgery is done for another reasons and another way than Europe.
yep it is a big big business
not sure urologists/specialists support (their authoritative organization) support these . curious to know.