If we will follow four regulative principles then sins will not be able to touch us.
Every thing in this world is neutral. Whether a thing is beneficial or destructive depends on the consciousness and character of the person utilizing it.
Our consciousness and our motivations in life are like spectacles having different colours, which make everything appear tainted. Association of saintly people and regular spiritual practices give us the vision and the philosophical ideal which help us see the world clearly.
Cleansing of the mirror of consciousness takes place, as one minimizes his bodily concept of false ego.
If your consciousness is absorbed in Krishna, then You are always a Sannyasi.