Remember how Microsoft used its power during the Tech Bubble to grind down competitors? Remember what it did in spreadsheets, browsers, etc.?
As a result, newer tech companies (e.g. Google) have adopted the "don't be evil" motto.
Has Goldman Sachs become the Microsoft of today? See Barry Ritholz's comment (among others) on how GS is suing the blogger www.goldmansachs666.com for critizing Goldman.