A woman wearing heels can be a jerk the same way as a guy can. It's not the shoes but the person that counts. Also, I think it's strange that people are relying on heels for their individuality. In the end it's just a first impression, something small about you as a person.
But your true character and personality has little to do with your footwear. I say this as a person who is deeply interested in shoes, otherwise why would I be an admin on this board? However, the shoes are just a small facet. We're all different individuals beneath our outward appearances so don't get carried away by the shoes