You make a good point... I recently had a conversation with someone who thought that the reason that these shops are being looted is because people see that the only way to have status is to have, say, a blackberry, but they can't afford it- it's the only way they can feel they have a place in society. I agree with that and with what you're saying.
Actually, I come from the International Socialist tradition, which is a part of Trotskyism (at least we think it is). In the 60s and 70s, I was a very active member of the IS. Right now, I'm somewhere between Solidarity and the ISO.