There are a couple of important issues here, regardless of where Sri (sri sri) Ravi Shankar's sponsorship comes from. The one trait that all of these "protesting" people have is a leaning towards spirituality and value based leadership. Their values, lifestyles, and beliefs are all out in the open. They do not need a political or a marketing machinery to attract the crowds. The news that they are visiting town is usually enough to fill a stadium.
Similarly, the respect that people like Kiran Bedi and Arvind Kejriwal command is entirely based on the tangible work they have done in their lives, and on their public conduct. These are all people that the nation looks up to and respects. And in rather large numbers.