It's not really wilful violation..
.. it's more a case of badly chosen default, and in that matter Apple is not exactly the only company that seems to default to sharing rather than keeping things secure.
If you're smart enough to NOT immediately provide your Apple ID and password it will not have the credentials to access the iTrouble cloud, and Yosemite (or whatever iThing you-re setting up) will not be able to export any data. Once you have all set up, you enable what you need. I personally avoid sharing facilities like the plague they are, so my machine has no knowledge of any Twitter, Facebook or iCloud accounts - the Apple ID is only set up in the App Store and iTunes.
On the plus side, iCloud access does not require you to agree to terms that give Apple forever a free pass to use whatever you upload for their own purposes - they are at least keeping your data yours exclusively. If you want an example of something you don't want to agree to, carefully read http://google.com/accounts/tos. The section you really need to read a couple of times is titled "Your Content in our Services", and repeated reading is required to discern that the limitations on their use aren't, and that they have gone through an awful lot of trouble to avoid the use of the word "perpetuity".
As soon as you have a Google account you have agreed to this. Still feeling lucky?