Multiple Contacts with the Same Number

Question

https://discussions.apple.com/thread/1583335?start=0&tstart=0
I found that thread but I can't reply to it (it's been archived), and I want to know why Apple feels there is no need to make this distinction.
People in that thread suggested it operates the same as Caller ID - this is NOT the case. With a Caller ID, the name reported is not on YOUR end, but the phone company's. On a cell phone, it just matches the incoming number with your address book. And I'd like to add that even most land line phone handsets have a contact book that it looks up incoming calls to override the caller ID.
But the difference with an iPhone, especially with iOS 6, is all the data integration. It imports your Facebook friends directly into your contacts, but gives NO way to override or modify that information. So if, say, your brother lives at home with your parents, and he lists their home number as his own on Facebook, I have no way to alter this, and the incoming call is shown as "Home or His Name" (I've been using a contact named "Home" for that number) with no way to change it!!
I can't POSSIBLY be the only person that still uses contacts like "Home" or "Nextdoor Neighbor"... Apple seems to assume that each contact is a single person, and that isn't always the case.
I liked the idea that a poster in that thread I linked at the top of this post had - forming "groups" of contacts and assigning a name to the group as a whole. I see iOS 6 added groups of contacts, but I don't see ANY way to create them.

Answer 1

One workaround I've found to this is adding an extra character to the phone number in contacts which you do not want displayed when a call is received.
Smith residence: 111-222-3333
John Smith: 111-222-3333 x
Mary Smith: 111-222-3333 x
It's not particularly pretty or elegant, but it gets the job done. Calls placed to Mary or John seem to work, even with the extra character, although this may vary depending on the network provider.