The jedi are robots and the sith are psychopath. The light and dark side are Yin and Yang. There can be no light without the dark to define it. Neither are intrinsically good or evil it how you use it. Because you use anger in a fight doesn't mean your bad, it means you feel. Likewise shutting down your emotions like a robot doesn't make you good. Therefore in a roundabout answer: yes. Yes, you can use both and not be corrupted given your intentions are pure.