I agree there are difficulties when dealing with these consultants, but it's more or less the only route people can use. The visa system itself is to be blamed for the misuse.
Suppose I have a genuine company and I want a SAP consultant for 6 months if not for such system I will have to conduct interviews on phone and give them offer letter and it would take them a yr or more to get to US. The company can't wait for such long time. People need to be in US when they are required and by going through the rules would take ages and many a times some IT personnel are required only for short span of time so a company can't guarantee they would be with them for a long time. So these consultants get them here and send them to various locations in US to work on hourly basis for short periods of time.
These politicians are making noise only to get attention, all of them across the spectrum are well aware they need lot of Engineers. Also if they don't get engineers when required out sourcing would only grow. A couple of bad quarters you will see the US economy doing badly it would hit US and India both. Some of them are underpaid but many are also rewarded richly some of the SAP consultants get more then $ 150 per hour which is much more then some of the engineers in silicon valley. Even though some Indians come by wrong ways to US most of them are law abiding and only contribute to the US economy that is the reason no one actually cares.
