They treat you belong to community, and use your appearance in hidden ads as "just another consumer choose A.. products".

Even if you will intentionally hide all logos of A.. from A.. products u use, their design is very distinctive and widely known, so even looking on Xiaomi most people will think it is A..

Plus, A.. products usually deep integrated into their infrastructure, I mean A.. Wi-fi router, A.. printer, A.. speakers, A.. interfaces (Lightning), etc.