If Pelosi was supporting the privacy rules enactment, that tells me all I need to know. That woman is only out for one thing -- for the government (and by extension, herself) to have as much power and control as possible.
If word gets out that certain ISPs are engaging in nefarious or unsavory practices with people's personal information, people can (and many will) take their business elsewhere. Money talks. If corporations think they've now been given the power to screw their customers, they'll think twice when they run the revenue numbers once they start hemorrhaging customers.
Every single American consumer has the power to remind the companies they do business with that they are in business to serve their customers. If you don't like a company's business practices, don't give that company your hard-earned money! Government doesn't need to get involved.
Remember, all Pelosi and others like her want are more power and control. They'll try to disguise their true motives to make it look like they're "protecting" the American people; but it's all about getting more power for themselves.