H-1B visa bill passes

The H-1B visa bill has easily passed Congress, increasing the quota of H-1B visas for the next 3 years. Some of the revenue generated from H-1B application fees will go towards improving education.

Personally being in the US on one, and hoping my wife can get a job, I'm relieved. But, many of my colleagues worry that other more desperate foreigners who have more to lose by being kicked out from their jobs will work 18 hour shifts not to loose the opportunity of getting a Green-Card. Obviously, that decreases the bargaining power of US workers to work no more than 40 hours a week. Seems to me that the problem lies in the absolute power the companies wield over H-1B workers, rather than H-1B workers themselves. What do you think? Being from Europe, I was somewhat surprised when people told me that it was hard for Americans to get visas to work in Europe. Anybody have similar experiences?