Photography is contemporary art.
What is considered as good or bad has more to do with the creative process than the technical aspects of it. Compare a Renaissance paint with today's contemporary painters... Most big artists don't fuss that much about technical things...
And art is a about communicating, expressing yourself. If my vision of the world is contrasty and it means something to me, then how could it be considered bad?
Visit museums, take courses on art history (not just photography history).
Open your horizons man! Open your eyes and see beyond the picture!
Get over it and shoot.