Thats for /You/ though. Laws are for /everyone/. Also, everyone does private things on the net. Any credit card transaction should be a private dealing. If all your google searches were put up for the public to see, I don't think you'd be too happy about that. For others, they could have very negative social consequences.
I would argue hard privacy laws are more important on the internet, because you can mass collect data and make infinite copies, but in real life you can't mass collect the contents of homes and where things have been. The physical barrier is by itself a natural privacy maker, something that is important to try to replicate in communication with data.