Facebook is to privacy as Wal-Mart is to small retail business.
I know, it seems obvious on the face of it. Wal-Mart comes to Mayberry, and Walker's Drug Store and Foley's Grocery and Weaver's Department Store can't compete and go out of business.
...except weren't those already nailed before Wal-Mart got there by Walgreen's and Safeway and JC Penny?
I suspect that when a place is big enough to support a Wal-Mart, it's already attracted enough big national chains that the small guys are dead or dying.
The town where I went to high school got one. Before they showed up, there were no other big chains of anything in that sort of business. The closest were some of the standard big chain fast food joints and gas stations. Walgreens, Safeway, JC Penney, none of them existed there.
I left before the Wal-Mart came so I didn't really see how things changed with it. I have no idea if it was good or bad for small businesses (of which there wasn't much to destroy anyway) or the town as a whole. I'm just addressing the idea that Wal-Mart would somehow be a latecomer.