Dressed in blue jeans, silver mesh sneakers and a black T-shirt and jacket, Google Inc. co-founder Sergey Brin came to Washington to lobby members of Congress and found it was a little harder than he had hoped it would be to get meetings. The world's 16th-richest person -- with an $11 billion fortune, according to Forbes Magazine -- Brin, 31, described himself as naive about the ways of Washington.