When it comes to important advice and information, Google doesn't want to show pages that share uneducated or unreliable advice. Google is an authority and by association they should recommend sites that have a high level of expertise, authority and trustworthiness. The EAT theory is designed to protect users from company employee list low-quality and irrelevant search results, and to ensure that Google maintains its status as the world's leading search engine.
The Google EAT rule is particularly relevant for niches that have a tangible impact on user happiness, health, and wealth. For health, wellness, and bottom line, it's essential that Google provides accurate information to users. Safeguarding users' health and finances is a high-stakes game for Google, which is why pages in these niches are scrutinized by Google's human review team.