I do sympathize with your situation. It is totally unacceptable for audits and appeals to take so long.
I would suggest not getting into bed with the devil, just because there is a particular aspect of the system you are unhappy with.
Everybody has different aspects they don't like. If everybody contacts Grassley with their pet hate, then pretty soon the EB Immigration system will be closed down, or at least the bar will become so high that NOBODY can qualify. He certainly has no interest in helping YOU.
Grassley would just love that. He hates Immigration.
It is better to focus on ensuring that DOL becomes more efficient at processing Audits and Appeals and contact the Congressman or Senator relevant to that aim.
There are a couple of interesting threads on ImmInfo
Help Grassley kill legal immigration and
Article regarding EB2 India