because fundamentally they just want your money

Amazon takes customers and sellers data to manipulate all parties that deal with them.

You sell a massive amount of sweat pants on amazon? They'll start making the same item and pushing it to THEIR customers on THEIR platform

Amazons Alexa, when complaints came in about them monitoring customers conversations and they said it was around 1% of customers, that's still millions of people's data they just take to find out what you like and dont as a consumer.

They push into internet services and will monitor uses data that way as well. Surveillance Capitalism is the new norm. Facebook and Google are almost as bad as Amazon.