I think in the US it depends on where you live. NYC is definitely one of those places where you'd be less likely to find it, although it might have changed a bit since I lived there. Here, as others have said, there seems to be less, but I've run into a bit of pride in some people here as well. Our upstairs neighbour went out of his way in a conversation to let me know that he owned his flat (referring to our land lords, the couple who lives above him, and himself as "the owners").
Tremula, that's surprising you have observed that about the working class as they probably were one of the lowest home owning groups before the great council property sell off, and probably still are. I'd not be surprised if middle England ("Pardonia" and slightly beyond) had that opinion. I've not encountered it at all in the working class, and while some aspire to own their own homes if they don't already, it seems less about snobbery and more about being secure or those stupid property shows which have finally seemed to go away a bit. Maybe I just haven't met any "respectable" ones? I've met lower middle class/white collar workers with that attitude, but not working class.
Anyway, one of the problems with renting is security, and I hope that some of this will be addressed by one government or another in the coming years. Renting should be a viable option for people, and while there should be benefits for home ownership, it should be largely monetary and not around the feeling that you need to buy in order to avoid being at the whim of landlords. We're going to see an even tighter squeeze on renters as the investment in both property for sale and for rent dissipates. I heard a radio programme on this about a week or so ago, and a lot of people called in with concerns about people not being able to get on the property ladder at all, and the problems with renting (which may or may not be something that legislation or investment might fix).