Ya know there's caring about religion and there's curiousness. I don't care about the catholics but I'm curious about the torture methods of the Spanish Inquisition...
Learning about other ways to live, act, think and perceive is important if you want to understand the world you live in.
More importantly, to you at least, if you want to change other people caught in said powerplay, you have to listen to them. Forcing them to listen to you, will only make them grab harder at their own beliefs.
And one could argue talking with out listening is a powerplay of its own.