Isn't that pretty much why we have welfare - to give the poor protection money to stop them attacking? Sure, you could spend more on police, but it's probably more cost effective to just give poor people money to keep them a bit more docile.
Bread and circuses. Basic income could work even better, by giving more certainty. There's probably a better version of circuses too - it was TV, now the mainstream internet, but at least there's more opportunity to use the net to move forward.
