You can not stop the water, it is making own ways or it burst and wipe out every thing. Similarly injustice, use of immense power, denying the rights, very basic rights can not work for a long time. The world is changing rapidly. The minds are changing. It is different era different in many aspects.
How the Leaders, the Dictators are leading their countries? Is it possible that you ignored the power of masses or you can invent new ways to stop them? Nay it is not possible at all, though your ways(more precisely the systems) were more sophisticated and took long time and efforts possibly to invent them, but now it seems those are not going to be work. The water is making its own ways.
The power elite is always blind sided, can not foresee. Indeed it is misfortune.