So, the teleology of the Left is a stream of Modern European culture that places itself in its experience of history, that is, we see history and experience as entirely future-directed.
Whereas the Right is stuck in a Hobbesian world.
The struggle is either to support things that bring out the best in Humanity, or restrict it since we are beasts and always will be.
H.A Hayek, in his essay "Why I am not a Conservative" states clearly his idea of the difference between the liberal mind versus the conservative one is that the Liberal is not afraid of the future even if he knows it is uncontrollable, and the conservative is afraid of it for precisely the same reason.
http://www.geocities.com/ecocorner/intelarea/fah1.html
If homo erectus had that latter trait we would not be here at all.