The 'do no evil' company gets the blame for scuttling Microsoft's Yahoo! hostile bid.
Except...
It was not Google's Fault.
It was a convenient excuse for Ballmer though.
To save face.
Has Ballmer gone asian???
Anyway.
One of these things probably happened: A) Ballmer realized he is making a mistake; B) Ballmer agreed with a lot of critic's thinking that he is making a mistake; C) Ballmer was convinced by those close to him that he is making a mistake.
Or...
Ballmer has achieved his objective: cause sufficient damage to impair Yahoo! for the foreseeable future.