There are people who say Lokpal Bill targets corruption at top and does not make any difference to corruption at bottom. They do not know corruption at bottom is very often due to corruption at top.
A home minister takes four crore rupees as bribe to appoint a police officer as commissioner. The commissioner recovers that money from his juniors who in turn recover money from their juniors and so it reaches the level of constable. This also results in criminals going scot-free due to acts of commission and omission by police.
A chairman of a Public Service Commission takes 75 lakh rupees as bribe to appoint DSPs and judges. They recover it from their juniors and others.