You see, Congress loves money.

" In 2006, the year before (senior competition counsel, Dana) Wagner was hired, Google spent just $750,000 on political lobbying in Washington. Its current foes on the antitrust front--AT&T and Microsoft--spent a combined $35 million that year in political contributions." - via CNET

It's clear that the discrepancy between lobbying has made a huge difference in how DC views Google, and why we're seeing Washington tackling Google head on, even while Microsoft owns 90% of the world's desktop OS market and as much as 95% of the world's desktop productivity suite market.