We shouldn't. We're all just little chesspieces sculpted of vari-coloured flesh; we do what they tell us to, move when they want us to, say what they want us to say. Try and move of your own accord and you can feel them jerking back on the strings - wires sewn through your wrists and legs and every possible joint. Sometimes, if you're lucky enough, they manage to worm into your head with their insidious strings of predestined thought.
Participate in your own manipulation. Don't let the Gods have all of the fun. Every chance for choice that you steal from them is a victory...and once you become your own Puppet-Master, it really isn't manipulation anymore, is it?