Agitation comes when there is light at the end of the tunnel, it does not happen when there is complete darkness. That's to say the poor need the hope that change (revolution) will result in better things. They also need buy in from the better off (who would have the resources to stave off any revolution). People don't revolt for the sake of revolting there has to be an expected (positive) result at the end.

That's a very good point. It's getting much harder for a non-college-educated person to get a job. Thank you for explaining that further.