Maybe OP spends most of his time on the computer, and thus expects privacy on the Internet, as it might be his main interface to the world. Now, if OP spent most of his time outside and that was his primary interface to society, he would expect the same privacy there.

Good question. I guess it's because it's more feasible and because I can't really hurt others here. The worst I can do is manipulate combinations of 1s and 0s to hack their accounts if their services' security isn't up to snuff or something.

If someone hacked my bank, I'd blame the bank more than the hackers; if someone broke into my home and robbed or hurt me, I'd be harsher on them than on my door manufacturer! (Perhaps not even because it's easier to secure my door than it is an electronic banking system but because I'd be more hurt...)

Still someone breaking into your home will use a mask, and you will not be allowed to when buying things in a store.

I'd rather they didn't in either case, although it is unfortunately difficult to acquire goods legitimately yet anonymously, so I lament that too. At the end of the day, Amazon knows a lot about me.

Another distinction I just thought of is that while I have the option of having online accounts to be hacked (or silly-named personas to talk with), I have no option of having a physical place in meatspace to inhabit of my own where I keep my stuff. I need one, and, if I can't get one, I have bigger problems than privacy. :c