Admiring Ravana may not be a sin. But if that admiration ends up, over a period of time, in justifying sinful thoughts in you, then there is trouble. Thoughts lead to actions and actions bring punya or papa.
Imagine thoughts like these:
- “I am a great scholar; most people around me are idiots. Idiots are meant to be banished”
- “I am a great devotee if God. I always have had the blessings an protection of my God. I can do whatever I feel like and get away with it”
- “I am the Managing Director of this massive corporation; none else is as powerful as I am. That Secretary in accounts dept. is so beautiful. I want to enjoy my night with her. She is married? Very devoted to husband? So what? I can even abduct her, woo her with my power and wealth! Who on earth will not fall for my personality and stature?”
- “Well wishers around me say that it is wrong? Hell with them! Who are they to advise me so ignoring my greatness? If you can’t say yes to whatever I say or do, get out! I just don’t care.”
Get the point? Whatever be the goodness in a person, if evil qualities in him are more predominant, better to be watchful of the evil tendencies rather than just admiring the goodness, brushing aside the evil.