Rioting and rioting?

Rioting??
Riots ain't what they used to be. In the good old days riots used to be for some political or other purpose involving public concern. Usually they took place because the people involved could not make themselves heard in any other more acceptable way. The current outbreak in the UK seems fundamentally to involve nasty criminals who lack any notion of discipline or of respect either for themselves or for others. This morning, I heard a couple of your women glorifying and justifying their stolen gains and planning to pop out again tonight for more.              
 I'm not basically against rioting, but I do feel that it ought to be to good purpose like getting rid of useless governments, complaining in the strongest terms about the way the poor are always penalised by the rich and the establishment, giving our opinion on the uselessness of Fitch's, Standard and Poor's, Moody's and the rest of the gang who caused the current problems in the first place by telling everyone how god the junk mortgages were. I'd be very happy to support rioting in such  good causes provided that the proceeds went to people in need and not to petty crooks.
The trouble is that  the petty crooks and others all know that the people who should be vilified and castigated are getting away with it and governments are penalising the poor as usual. What on earth are the politicians going to do in their reconvened parliament? Nothing, of course. They and their ilk are solely to blame for the loss of standards in UK as they don't understand the ne eds of ordinary people.  So let's not expect any change, it won't happen until things get a lot worse and the people wake up to their own weakness in the face of centuries of governmental incompetence. So how many riots make a revolution?