Why is SEO not well known in Brazil?

This one is for my compatriots. I have been working with SEO for 4 years for a US company, and even though Brazil already has a more consolidated market in terms of marketing, SEO is still extremely niche. See that only large companies invest in quality content, and the small ones that do, do so poorly because they don't understand the subject or because they hire the famous “experts”. In foreign countries, SEO has been fundamental since the beginning of the internet.