I should rephrase my original sentence. I wanted to say: "For all we know they might all be criminals". As slightlymad said above, the info that reaches us is incomplete. I can try and ask a few people, but whatever info I can get on egypt will likely be heavily opinionated, as literally everyone I know that has ties to egypt was on the streets against the brotherhood. I don't want to quote such a biased source.
Also, I literally said that those sentences were unjust. I'm just saying that there were more people suffering from 1/3 of the egyptian population blocking kairo, than there are from those sentences. I mean no one was able to do their work, the food circulation went downhill and poverty hit harder than usual. Now I know that most people blame this on morsi's regime, since he indeed did a few things to stifle the economy, but that part at least was the demonstrant's fault.