from this chart, the most evil is facebook and google. The least is amazon.
https://twitter.com/mrjeremyblaze/status/939758404037255169
actually, judging ads or services as evil while selling product is not, is actually stupid. That's the kinda thing the open source fuckheads think. That's the thinking of those who never studied basic economics.
i learned this from Thomas Sowell's Basic Economics in 2003
http://wordyenglish.com/misc/basic_economics.html