Mystics and men of grace

When you start read about mystics and their powers , there is always a hint of doubt. People who knew me will always tell me that I like to ask more questions and will not be convinced by textbook answers. Its always enlightening to read the lectures of Sathguru Jaggi Vasudev and Swami Sukabodanda.
"Autobiography of a Yogi" talked about a lot of yogis who had amazing powers , but they prefer
I would like to start this to read and share stories about them and wonder if they could be true, one of the persons who I read recently about from my friend is the following story.

http://www.hinduonnet.com/thehindu/fr/2003/05/02/stories/2003050201370400.htm

I am not sure if this is a true story. I have the following questions in this story
1 ) If I assume the story is true , is the meaning of the story is "Talk less and meditate more " ?
2 ) This question always bothers me , what does a yogi do ?
3 ) If they are going to be constrained to be in their own world , by being silent and being in their yoga position , what good does it do for others ?
4 ) Isn't one of the best things in life to do is to share your enlightenment with others so that they could get to advance in their life ?
5 ) All these stories even like "Vallalar" who had this great "Vadiya payire kanda pothu ellam vadinen" ( whenever I saw a plant which was sad, I was also sad). He also got married and he didn't even touch his wife. Doesn't the people's wife get more credit than these people, they have choosen their life , but the wives have been forced into this life.