[Hawramani]

What made Microsoft evil: They used to go into acquisition talks with small companies without planning to buy them. They'd learn about their technology and duplicate it themselves.

Another example of evil is cell phone carriers giving users high internet speeds but putting ridiculous caps on them. Or Apple banning apps from the app store then copying their functionality into their own software.

I don't know if Google has done or does anything like that, and that is why people tend to think they're 'better' than other companies.

Therefore by evil what is meant is the company using slimy underhanded tactics on competitors or customers (such companies usually use them on both). Maybe it can be expressed in one word: Cheating. Does the company cheat customers, partners, etc?