Words don't blow houses.. I don't think so..

You did not live in third world country yet.. so may be you dont know how WORDS could affect the social relationships..

Rumours are also words..

Do you know the reason behind the recent communal violence in India? It was a MMS/video of a hatred speech. Some even said it was a fake video..

I wish , I deeply wish and it is my dream that everyone of us should reach that spiritual height as you mentioned (inner peace, focus on self) when both appreciation and criticism dont affect the inside.. but we can't expect the same quality from everyone else.